


Summary of basic file and directory operations commonly used in PHP_PHP Tutorial. Basic file operations
The basic operations of files include: file judgment, directory judgment, file size, read-write judgment, existence judgment and file time, etc.
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial:
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: header("content-type","text/html;charset=utf-8");
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *Declare a function, pass in the file name to get the file attributes
5: *@param string $fileName file name
6: */
7: function getFilePro($fileName)
8: {
9: if(!file_exists($fileName))
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: {
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo 'The file does not exist
';
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: return;
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*Is it an ordinary file*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: if(is_file($fileName))
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6: {
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: echo $fileName.' is a file
';
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: /*Is it a directory*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: if(is_dir($fileName))
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo $fileName.' is a directory';
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*Output file type*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: echo 'The file type is: '.getFileType($fileName).'
';
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6: /*File size, conversion unit*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: echo 'The file size is:'.getFileSize(filesize($fileName)).'
';
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8: /*Whether the file is readable*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: if(is_readable($fileName))
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: {
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo 'File readable
';
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*Whether the file is writable*/
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: if(is_writable($fileName))
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: {
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6: echo 'File can be written
';
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8: /*Whether the file is executable*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: if(is_executable($fileName))
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: {
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo 'File executable
';
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial:
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo 'File creation time:'.date('Y year m month j day',filectime( $fileName)).'
';
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: echo 'The last modification time of the file:'.date('Y year m month j day',filemtime ($fileName)).'
';
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6: echo 'The last time the file was opened:'.date('Y year m month j day',fileatime ($fileName)).'
';
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8:
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: /*
50: *Declare a function that returns the file type
5Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *@param string $fileName file name
5Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: */
5Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: function getFileType($fileName)
5Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
55: $type = '';
56: switch(filetype($fileName))
57: {
58: case 'file':$type .= 'Ordinary file';break ;
59: case 'dir':$type .= 'Directory file';break ;
60: case 'block':$type .= 'block device file';break;
6Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: case 'char':$type .= 'Character device file';break;
6Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: case 'filo':$type .= 'pipe file';break ;
6Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: case 'link':$type .= 'Symbolic link';break ;
6Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: case 'unknown':$type .= 'Unknown file';break ;
65: default:
66: }
67: return $type;
68: }
69:
70: /*
7Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *Declare a function that returns the file size
7Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *@param int $bytes Number of bytes in the file
7Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: */
7Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: function getFileSize($bytes)
75: {
76: if($bytes >= pow(Summary of basic file and directory operations commonly used in PHP_PHP Tutorial,Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0))
77: {
78: $return = round($bytes / pow(Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial,Summary of basic file and directory operations commonly used in PHP_PHP Tutorial),Summary of basic file and directory operations commonly used in PHP_PHP Tutorial);
79: $suffix = 'TB';
80: }
8Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: else if($bytes >= pow(Summary of basic file and directory operations commonly used in PHP_PHP Tutorial,Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0))
8Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
8Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: $return = round($bytes / pow(Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial,Summary of basic file and directory operations commonly used in PHP_PHP Tutorial),Summary of basic file and directory operations commonly used in PHP_PHP Tutorial);
8Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: $suffix = 'GB';
85: }
86: else if($bytes >= pow(Summary of basic file and directory operations commonly used in PHP_PHP Tutorial,Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0))
87: {
88: $return = round($bytes / pow(Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial,Summary of basic file and directory operations commonly used in PHP_PHP Tutorial),Summary of basic file and directory operations commonly used in PHP_PHP Tutorial);
89: $suffix = 'MB';
90: }
9Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: else if($bytes >= pow(Summary of basic file and directory operations commonly used in PHP_PHP Tutorial,Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0))
9Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
9Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: $return = round($bytes / pow(Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial,Summary of basic file and directory operations commonly used in PHP_PHP Tutorial),Summary of basic file and directory operations commonly used in PHP_PHP Tutorial);
9Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: $suffix = 'KB';
95: }
96: else
97: {
98: $return = $bytes;
99: $suffix = 'B';
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial00: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: return $return." ".$suffix;
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0Summary of basic file and directory operations commonly used in PHP_PHP Tutorial:
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*Call the function and pass in the test.txt file in the test directory*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial05: getFilePro('./test/div.html');
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial06: ?>
Result:
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial. Directory operations
Directory operations include: directory traversal, deletion, copy, size statistics, etc.
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial. Traverse the directory
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *Traverse directory
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *@param string $dirName directory name
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: */
5: function findDir($dirName)
6: {
7: $num = 0; /*Count the number of sub-files*/
8: $dir_handle = opendir($dirName); /*Open directory*/
9: /*Output directory file*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: echo ' Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo ' Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo ' Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo ' Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: while($file = readdir($dir_handle)) Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6: { Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: $dirFile = $dirName.'/'.$file; Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8: $bgcolor = $num %Summary of basic file and directory operations commonly used in PHP_PHP Tutorial==0?'#ffffff':'#cccccc'; Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: echo ' Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: echo ' Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo ' Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo ' Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo ' Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo ' Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: } Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6: echo "';
";; ';File name
File size
File type
Modification time
';
';'.$file.'
';
'.filesize($dirFile).'
' ;
'.filetype($dirFile).'
' ;
'.date('Y/n/t',filemtime($ dirFile)).'
';
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: closedir($dir_handle); /*Close directory*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8: echo "There are ".$dirName." directory ;".$num.'Subfile';
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: /*Pass the test directory under the current directory*/
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: findDir('./test');
Results
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial. Statistical directory size
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *Statistics directory size
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *@param string $dirName directory name
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *@return double
5: */
6:
7: function dirSize($dirName)
8: {
9: $dir_size = 0;
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: if($dir_handle = @opendir($dirName))
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: while ($fileName = readdir($dir_handle))
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*排除两个特殊目录*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: if($fileName != '.' && $fileName != '..')
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6: {
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: $subFile = $dirName.'/'.$fileName;
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8: if(is_file($subFile))
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: {
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: $dir_size = filesize($subFile);
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: if(is_dir($subFile))
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: $dir_size = dirSize($subFile);
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8: closedir($dir_handle);
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: return $dir_size;
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*传递当前目录下的test目录*/
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: $dir_size = dirSize('./test');
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo './test目录文件大小是:'.round($dir_size / pow(Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial,Summary of basic file and directory operations commonly used in PHP_PHP Tutorial),Summary of basic file and directory operations commonly used in PHP_PHP Tutorial).'KB';
结果
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial、删除目录
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *Delete directory
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *@param string $dirName directory name
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: */
5: function delDir($dirName)
6: {
7: /*The mkdir function in php can create a directory*/
8: if(file_exists($dirName))
9: {
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: if($dir_handle = @opendir($dirName))
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: while ($fileName = readdir($dir_handle))
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5:
if($fileName != '.' && $fileName != '..') Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6:
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: $subFile = $dirName.
'/'.$fileName; Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8:
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0:
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial:
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial:Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial:
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: delDir($subFile);
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6:
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8: closedir($dir_handle);
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: rmdir($dirName);
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: return $dirName.'The directory has been deleted';
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*Pass a copy of the test directory testSummary of basic file and directory operations commonly used in PHP_PHP Tutorial*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: echo delDir('./testSummary of basic file and directory operations commonly used in PHP_PHP Tutorial');
Prompt message for successful deletion
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial. Copy directory
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: /*
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *Copy directory
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *@param string $dirSrc original directory name
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial: *@param string $dirTo target directory name
5: */
6: function copyDir($dirSrc,$dirTo)
7: {
8: if(is_file($dirTo))
9: {
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: echo 'The target directory cannot be created';/*The target is not one*/
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: return;
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: if(!file_exists($dirTo))
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: /*Create the directory if it does not exist*/
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6: mkdir($dirTo);
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8: if($dir_handle = @opendir($dirSrc))
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: {
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: while ($fileName = readdir($dir_handle))
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial:
if($fileName != '.' && $fileName != '..') Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial:
{Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: $subSrcFile = $dirSrc.'/'.$fileName;
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6: $subToFile = $dirTo.'/'.$fileName;
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: if(is_file($subSrcFile))
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8: {
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: copy($subSrcFile,$subToFile);
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: if(is_dir($subSrcFile))
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: {
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: copyDir($subSrcFile,$subToFile);
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial5: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial6: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial7: closedir($dir_handle);
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial8: return $dirSrc.'目录已经复制到'.$dirTo.'目录';
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial9: }
Summary of basic file and directory operations commonly used in PHP_PHP Tutorial0: }
Summary of basic file and directory operations commonly used in PHP_PHP TutorialSummary of basic file and directory operations commonly used in PHP_PHP Tutorial: echo copyDir('./test','../testcopy');


php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。


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mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
