Detailed explanation of deleting unlink() in php files_PHP tutorial

Deleting files in php is very simple. Just use the unlink function to complete the deletion. If you want to delete all files in a directory, we need to use recursive operation to delete the directory.

Remember the lesson from PHP file creation, we created a file called testFile.txt.

The code is as follows

代码如下	复制代码
$myFile = "testFile.txt"; $fh = fopen($myFile, 'w') or die("can't open file"); fclose($fh); 判断是否删除了. $myFile = "testFile.txt"; unlink($myFile);

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代码如下	复制代码
$filename = 'file.txt'; fopen($filename,'a+'); if(!unlink($filename)) { echo "文件{$filename}删除失败"; } else { echo "文件{$filename}删除成功"; } ?>

$myFile = "testFile.txt";
$fh = fopen($myFile, 'w') or die("can't open file");
fclose($fh);
Determine whether it has been deleted.

$myFile = "testFile.txt";
unlink($myFile);

代码如下

复制代码

function delFileUnderDir( $dirName="../Smarty/templates/templates_c" ) { if ( $handle = opendir( "$dirName" ) ) {    while ( false !== ( $item = readdir( $handle ) ) ) {    if ( $item != "." && $item != ".." ) {    if ( is_dir( "$dirName/$item" ) ) {          delFileUnderDir( "$dirName/$item" );    } else {    if( unlink( "$dirName/$item" ) )echo "成功删除文件： $dirName/$item n";    }    }    }    closedir( $handle ); } }

Example

The code is as follows

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$filename = 'file.txt';
fopen($filename,'a+');
if(!unlink($filename))
{
echo "File {$filename} deletion failed";
}
else
{
echo "File {$filename} was deleted successfully";
}
?> Delete all files in the directory

The code is as follows

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function delFileUnderDir( $dirName="../Smarty/templates/templates_c" ) { if ( $handle = opendir( "$dirName" ) ) { while ( false !== ( $item = readdir( $handle ) ) ) { if ( $item != "." && $item != ".." ) { if ( is_dir( "$dirName/$item" ) ) { delFileUnderDir( "$dirName/$item" ); } else { if( unlink( "$dirName/$item" ) )echo "File deleted successfully: $dirName/$item n"; } } } closedir( $handle ); } } http://www.bkjia.com/PHPjc/633098.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/633098.htmlTechArticleDeleting files in php is very simple. Just use the unlink function to complete the deletion. If you want to delete all files in the directory, we It is necessary to use recursive operation directory to delete. Remember to start from the PHP file...