| 纪录了PHP的一些常用函数和函数代码！不要错过了哦。 PHP的一些常用函数 PHP String 函数 PHP Math 函数 PHP Error 和 Logging 函数 PHP Array 函数 PHP Array 函数 |
这下面是一些常用的函数实例哦。以后大家一定能用的上！（本文将不断更新，同时也希望热心的网友朋友们能贡献自己一点一滴的知识，大家共同进步，一起学习）
1、截取UTF-8编码下字符串的函数
1 /** 2 * 截取UTF-8编码下字符串的函数 3 * 4 * @param string $str 被截取的字符串 5 * @param int $length 截取的长度 6 * @param bool $append 是否附加省略号 7 * 8 * @return string 9 */10 function sub_str($str, $length = 0, $append = true)11 {12 $str = trim($str);//去掉前后的空格13 $strlength = strlen($str);14 15 if ($length == 0 || $length >= $strlength)16 {17 return $str;18 }19 elseif ($length < 0)20 {21 $length = $strlength + $length;22 if ($length < 0)23 {24 $length = $strlength;25 }26 }27 28 if (function_exists('mb_substr'))29 {30 $newstr = mb_substr($str, 0, $length, EC_CHARSET);31 }32 elseif (function_exists('iconv_substr'))33 {34 $newstr = iconv_substr($str, 0, $length, EC_CHARSET);35 }36 else37 {38 //$newstr = trim_right(substr($str, 0, $length));39 $newstr = substr($str, 0, $length);40 }41 42 if ($append && $str != $newstr)43 {44 $newstr .= '...';45 }46 47 return $newstr;48 } View Code 2、获得用户的真实IP地址
1 /** 2 * 获得用户的真实IP地址 3 * 4 * @access public 5 * @return string 6 */ 7 function real_ip() 8 { 9 static $realip = NULL;10 11 if ($realip !== NULL)12 {13 return $realip;14 }15 16 if (isset($_SERVER))17 {18 if (isset($_SERVER['HTTP_X_FORWARDED_FOR']))19 {20 $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);21 22 /* 取X-Forwarded-For中第一个非unknown的有效IP字符串 */23 foreach ($arr AS $ip)24 {25 $ip = trim($ip);26 27 if ($ip != 'unknown')28 {29 $realip = $ip;30 31 break;32 }33 }34 }35 elseif (isset($_SERVER['HTTP_CLIENT_IP']))36 {37 $realip = $_SERVER['HTTP_CLIENT_IP'];38 }39 else40 {41 if (isset($_SERVER['REMOTE_ADDR']))42 {43 $realip = $_SERVER['REMOTE_ADDR'];44 }45 else46 {47 $realip = '0.0.0.0';48 }49 }50 }51 else52 {53 if (getenv('HTTP_X_FORWARDED_FOR'))54 {55 $realip = getenv('HTTP_X_FORWARDED_FOR');56 }57 elseif (getenv('HTTP_CLIENT_IP'))58 {59 $realip = getenv('HTTP_CLIENT_IP');60 }61 else62 {63 $realip = getenv('REMOTE_ADDR');64 }65 }66 67 preg_match("/[\d\.]{7,15}/", $realip, $onlineip);68 $realip = !empty($onlineip[0]) ? $onlineip[0] : '0.0.0.0';69 70 return $realip;71 } View Code 3、计算字符串的长度（汉字按照两个字符计算）
1 /** 2 * 计算字符串的长度（汉字按照两个字符计算） 3 * 4 * @param string $str 字符串 5 * 6 * @return int 7 */ 8 function str_len($str) 9 {10 $length = strlen(preg_replace('/[\x00-\x7F]/', '', $str));11 12 if ($length)13 {14 return strlen($str) - $length + intval($length / 3) * 2;15 }16 else17 {18 return strlen($str);19 }20 } View Code 4、获得用户操作系统的换行符
1 /** 2 * 获得用户操作系统的换行符 3 * 4 * @access public 5 * @return string 6 */ 7 function get_crlf() 8 { 9 /* LF (Line Feed, 0x0A, \N) 和 CR(Carriage Return, 0x0D, \R) */10 if (stristr($_SERVER['HTTP_USER_AGENT'], 'Win'))11 {12 $the_crlf = '\r\n';13 }14 elseif (stristr($_SERVER['HTTP_USER_AGENT'], 'Mac'))15 {16 $the_crlf = '\r'; // for old MAC OS17 }18 else19 {20 $the_crlf = '\n';21 }22 23 return $the_crlf;24 } View Code 5、邮件发送
1 /** 2 * 邮件发送 3 * 4 * @param: $name[string] 接收人姓名 5 * @param: $email[string] 接收人邮件地址 6 * @param: $subject[string] 邮件标题 7 * @param: $content[string] 邮件内容 8 * @param: $type[int] 0 普通邮件， 1 HTML邮件 9 * @param: $notification[bool] true 要求回执， false 不用回执 10 * 11 * @return boolean 12 */ 13 function send_mail($name, $email, $subject, $content, $type = 0, $notification=false) 14 { 15 /* 如果邮件编码不是EC_CHARSET，创建字符集转换对象，转换编码 */ 16 if ($GLOBALS['_CFG']['mail_charset'] != EC_CHARSET) 17 { 18 $name = ecs_iconv(EC_CHARSET, $GLOBALS['_CFG']['mail_charset'], $name); 19 $subject = ecs_iconv(EC_CHARSET, $GLOBALS['_CFG']['mail_charset'], $subject); 20 $content = ecs_iconv(EC_CHARSET, $GLOBALS['_CFG']['mail_charset'], $content); 21 $shop_name = ecs_iconv(EC_CHARSET, $GLOBALS['_CFG']['mail_charset'], $GLOBALS['_CFG']['shop_name']); 22 } 23 $charset = $GLOBALS['_CFG']['mail_charset']; 24 /** 25 * 使用mail函数发送邮件 26 */ 27 if ($GLOBALS['_CFG']['mail_service'] == 0 && function_exists('mail')) 28 { 29 /* 邮件的头部信息 */ 30 $content_type = ($type == 0) ? 'Content-Type: text/plain; charset=' . $charset : 'Content-Type: text/html; charset=' . $charset; 31 $headers = array(); 32 $headers[] = 'From: "' . '=?' . $charset . '?B?' . base64_encode($shop_name) . '?='.'" <' . $GLOBALS['_CFG']['smtp_mail'] . '>'; 33 $headers[] = $content_type . '; format=flowed'; 34 if ($notification) 35 { 36 $headers[] = 'Disposition-Notification-To: ' . '=?' . $charset . '?B?' . base64_encode($shop_name) . '?='.'" <' . $GLOBALS['_CFG']['smtp_mail'] . '>'; 37 } 38 39 $res = @mail($email, '=?' . $charset . '?B?' . base64_encode($subject) . '?=', $content, implode("\r\n", $headers)); 40 41 if (!$res) 42 { 43 $GLOBALS['err'] ->add($GLOBALS['_LANG']['sendemail_false']); 44 45 return false; 46 } 47 else 48 { 49 return true; 50 } 51 } 52 /** 53 * 使用smtp服务发送邮件 54 */ 55 else 56 { 57 /* 邮件的头部信息 */ 58 $content_type = ($type == 0) ? 59 'Content-Type: text/plain; charset=' . $charset : 'Content-Type: text/html; charset=' . $charset; 60 $content = base64_encode($content); 61 62 $headers = array(); 63 $headers[] = 'Date: ' . gmdate('D, j M Y H:i:s') . ' +0000'; 64 $headers[] = 'To: "' . '=?' . $charset . '?B?' . base64_encode($name) . '?=' . '" <' . $email. '>'; 65 $headers[] = 'From: "' . '=?' . $charset . '?B?' . base64_encode($shop_name) . '?='.'" <' . $GLOBALS['_CFG']['smtp_mail'] . '>'; 66 $headers[] = 'Subject: ' . '=?' . $charset . '?B?' . base64_encode($subject) . '?='; 67 $headers[] = $content_type . '; format=flowed'; 68 $headers[] = 'Content-Transfer-Encoding: base64'; 69 $headers[] = 'Content-Disposition: inline'; 70 if ($notification) 71 { 72 $headers[] = 'Disposition-Notification-To: ' . '=?' . $charset . '?B?' . base64_encode($shop_name) . '?='.'" <' . $GLOBALS['_CFG']['smtp_mail'] . '>'; 73 } 74 75 /* 获得邮件服务器的参数设置 */ 76 $params['host'] = $GLOBALS['_CFG']['smtp_host']; 77 $params['port'] = $GLOBALS['_CFG']['smtp_port']; 78 $params['user'] = $GLOBALS['_CFG']['smtp_user']; 79 $params['pass'] = $GLOBALS['_CFG']['smtp_pass']; 80 81 if (empty($params['host']) || empty($params['port'])) 82 { 83 // 如果没有设置主机和端口直接返回 false 84 $GLOBALS['err'] ->add($GLOBALS['_LANG']['smtp_setting_error']); 85 86 return false; 87 } 88 else 89 { 90 // 发送邮件 91 if (!function_exists('fsockopen')) 92 { 93 //如果fsockopen被禁用，直接返回 94 $GLOBALS['err']->add($GLOBALS['_LANG']['disabled_fsockopen']); 95 96 return false; 97 } 98 99 include_once(ROOT_PATH . 'includes/cls_smtp.php');100 static $smtp;101 102 $send_params['recipients'] = $email;103 $send_params['headers'] = $headers;104 $send_params['from'] = $GLOBALS['_CFG']['smtp_mail'];105 $send_params['body'] = $content;106 107 if (!isset($smtp))108 {109 $smtp = new smtp($params);110 }111 112 if ($smtp->connect() && $smtp->send($send_params))113 {114 return true;115 }116 else117 {118 $err_msg = $smtp->error_msg();119 if (empty($err_msg))120 {121 $GLOBALS['err']->add('Unknown Error');122 }123 else124 {125 if (strpos($err_msg, 'Failed to connect to server') !== false)126 {127 $GLOBALS['err']->add(sprintf($GLOBALS['_LANG']['smtp_connect_failure'], $params['host'] . ':' . $params['port']));128 }129 else if (strpos($err_msg, 'AUTH command failed') !== false)130 {131 $GLOBALS['err']->add($GLOBALS['_LANG']['smtp_login_failure']);132 }133 elseif (strpos($err_msg, 'bad sequence of commands') !== false)134 {135 $GLOBALS['err']->add($GLOBALS['_LANG']['smtp_refuse']);136 }137 else138 {139 $GLOBALS['err']->add($err_msg);140 }141 }142 143 return false;144 }145 }146 }147 } View Code 6、获得服务器上的 GD 版本
1 /** 2 * 获得服务器上的 GD 版本 3 * 4 * @access public 5 * @return int 可能的值为0，1，2 6 */ 7 function gd_version() 8 { 9 include_once(ROOT_PATH . 'includes/cls_image.php');10 11 return cls_image::gd_version();12 }13 14 if (!function_exists('file_get_contents'))15 {16 /**17 * 如果系统不存在file_get_contents函数则声明该函数18 *19 * @access public20 * @param string $file21 * @return mix22 */23 function file_get_contents($file)24 {25 if (($fp = @fopen($file, 'rb')) === false)26 {27 return false;28 }29 else30 {31 $fsize = @filesize($file);32 if ($fsize)33 {34 $contents = fread($fp, $fsize);35 }36 else37 {38 $contents = '';39 }40 fclose($fp);41 42 return $contents;43 }44 }45 }46 47 if (!function_exists('file_put_contents'))48 {49 define('FILE_APPEND', 'FILE_APPEND');50 51 /**52 * 如果系统不存在file_put_contents函数则声明该函数53 *54 * @access public55 * @param string $file56 * @param mix $data57 * @return int58 */59 function file_put_contents($file, $data, $flags = '')60 {61 $contents = (is_array($data)) ? implode('', $data) : $data;62 63 if ($flags == 'FILE_APPEND')64 {65 $mode = 'ab+';66 }67 else68 {69 $mode = 'wb';70 }71 72 if (($fp = @fopen($file, $mode)) === false)73 {74 return false;75 }76 else77 {78 $bytes = fwrite($fp, $contents);79 fclose($fp);80 81 return $bytes;82 }83 }84 }85 86 if (!function_exists('floatval'))87 {88 /**89 * 如果系统不存在 floatval 函数则声明该函数90 *91 * @access public92 * @param mix $n93 * @return float94 */95 function floatval($n)96 {97 return (float) $n;98 }99 } View Code 7、文件或目录权限检查函数
1 /** 2 * 文件或目录权限检查函数 3 * 4 * @access public 5 * @param string $file_path 文件路径 6 * @param bool $rename_prv 是否在检查修改权限时检查执行rename()函数的权限 7 * 8 * @return int 返回值的取值范围为{0 <= x <= 15}，每个值表示的含义可由四位二进制数组合推出。 9 * 返回值在二进制计数法中，四位由高到低分别代表 10 * 可执行rename()函数权限、可对文件追加内容权限、可写入文件权限、可读取文件权限。 11 */ 12 function file_mode_info($file_path) 13 { 14 /* 如果不存在，则不可读、不可写、不可改 */ 15 if (!file_exists($file_path)) 16 { 17 return false; 18 } 19 20 $mark = 0; 21 22 if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') 23 { 24 /* 测试文件 */ 25 $test_file = $file_path . '/cf_test.txt'; 26 27 /* 如果是目录 */ 28 if (is_dir($file_path)) 29 { 30 /* 检查目录是否可读 */ 31 $dir = @opendir($file_path); 32 if ($dir === false) 33 { 34 return $mark; //如果目录打开失败，直接返回目录不可修改、不可写、不可读 35 } 36 if (@readdir($dir) !== false) 37 { 38 $mark ^= 1; //目录可读 001，目录不可读 000 39 } 40 @closedir($dir); 41 42 /* 检查目录是否可写 */ 43 $fp = @fopen($test_file, 'wb'); 44 if ($fp === false) 45 { 46 return $mark; //如果目录中的文件创建失败，返回不可写。 47 } 48 if (@fwrite($fp, 'directory access testing.') !== false) 49 { 50 $mark ^= 2; //目录可写可读011，目录可写不可读 010 51 } 52 @fclose($fp); 53 54 @unlink($test_file); 55 56 /* 检查目录是否可修改 */ 57 $fp = @fopen($test_file, 'ab+'); 58 if ($fp === false) 59 { 60 return $mark; 61 } 62 if (@fwrite($fp, "modify test.\r\n") !== false) 63 { 64 $mark ^= 4; 65 } 66 @fclose($fp); 67 68 /* 检查目录下是否有执行rename()函数的权限 */ 69 if (@rename($test_file, $test_file) !== false) 70 { 71 $mark ^= 8; 72 } 73 @unlink($test_file); 74 } 75 /* 如果是文件 */ 76 elseif (is_file($file_path)) 77 { 78 /* 以读方式打开 */ 79 $fp = @fopen($file_path, 'rb'); 80 if ($fp) 81 { 82 $mark ^= 1; //可读 001 83 } 84 @fclose($fp); 85 86 /* 试着修改文件 */ 87 $fp = @fopen($file_path, 'ab+'); 88 if ($fp && @fwrite($fp, '') !== false) 89 { 90 $mark ^= 6; //可修改可写可读 111，不可修改可写可读011... 91 } 92 @fclose($fp); 93 94 /* 检查目录下是否有执行rename()函数的权限 */ 95 if (@rename($test_file, $test_file) !== false) 96 { 97 $mark ^= 8; 98 } 99 }100 }101 else102 {103 if (@is_readable($file_path))104 {105 $mark ^= 1;106 }107 108 if (@is_writable($file_path))109 {110 $mark ^= 14;111 }112 }113 114 return $mark;115 }116 117 function log_write($arg, $file = '', $line = '')118 {119 if ((DEBUG_MODE & 4) != 4)120 {121 return;122 }123 124 $str = "\r\n-- ". date('Y-m-d H:i:s'). " --------------------------------------------------------------\r\n";125 $str .= "FILE: $file\r\nLINE: $line\r\n";126 127 if (is_array($arg))128 {129 $str .= '$arg = array(';130 foreach ($arg AS $val)131 {132 foreach ($val AS $key => $list)133 {134 $str .= "'$key' => '$list'\r\n";135 }136 }137 $str .= ")\r\n";138 }139 else140 {141 $str .= $arg;142 }143 144 file_put_contents(ROOT_PATH . DATA_DIR . '/log.txt', $str);145 } View Code 8、检查目标文件夹是否存在，如果不存在则自动创建该目录
1 /** 2 * 检查目标文件夹是否存在，如果不存在则自动创建该目录 3 * 4 * @access public 5 * @param string folder 目录路径。不能使用相对于网站根目录的URL 6 * 7 * @return bool 8 */ 9 function make_dir($folder)10 {11 $reval = false;12 13 if (!file_exists($folder))14 {15 /* 如果目录不存在则尝试创建该目录 */16 @umask(0);17 18 /* 将目录路径拆分成数组 */19 preg_match_all('/([^\/]*)\/?/i', $folder, $atmp);20 21 /* 如果第一个字符为/则当作物理路径处理 */22 $base = ($atmp[0][0] == '/') ? '/' : '';23 24 /* 遍历包含路径信息的数组 */25 foreach ($atmp[1] AS $val)26 {27 if ('' != $val)28 {29 $base .= $val;30 31 if ('..' == $val || '.' == $val)32 {33 /* 如果目录为.或者..则直接补/继续下一个循环 */34 $base .= '/';35 36 continue;37 }38 }39 else40 {41 continue;42 }43 44 $base .= '/';45 46 if (!file_exists($base))47 {48 /* 尝试创建目录，如果创建失败则继续循环 */49 if (@mkdir(rtrim($base, '/'), 0777))50 {51 @chmod($base, 0777);52 $reval = true;53 }54 }55 }56 }57 else58 {59 /* 路径已经存在。返回该路径是不是一个目录 */60 $reval = is_dir($folder);61 }62 63 clearstatcache();64 65 return $reval;66 } View Code 9、获得系统是否启用了 gzip
1 /** 2 * 获得系统是否启用了 gzip 3 * 4 * @access public 5 * 6 * @return boolean 7 */ 8 function gzip_enabled() 9 {10 static $enabled_gzip = NULL;11 12 if ($enabled_gzip === NULL)13 {14 $enabled_gzip = ($GLOBALS['_CFG']['enable_gzip'] && function_exists('ob_gzhandler'));15 }16 17 return $enabled_gzip;18 } View Code 10、递归方式的对变量中的特殊字符进行转义
1 /** 2 * 递归方式的对变量中的特殊字符进行转义 3 * 4 * @access public 5 * @param mix $value 6 * 7 * @return mix 8 */ 9 function addslashes_deep($value)10 {11 if (empty($value))12 {13 return $value;14 }15 else16 {17 return is_array($value) ? array_map('addslashes_deep', $value) : addslashes($value);18 }19 } View Code 11、将对象成员变量或者数组的特殊字符进行转
1 /** 2 * 将对象成员变量或者数组的特殊字符进行转义 3 * 4 * @access public 5 * @param mix $obj 对象或者数组 6 * @author Xuan Yan 7 * 8 * @return mix 对象或者数组 9 */10 function addslashes_deep_obj($obj)11 {12 if (is_object($obj) == true)13 {14 foreach ($obj AS $key => $val)15 {16 $obj->$key = addslashes_deep($val);17 }18 }19 else20 {21 $obj = addslashes_deep($obj);22 }23 24 return $obj;25 } View Code 12、递归方式的对变量中的特殊字符去除转义
1 /** 2 * 递归方式的对变量中的特殊字符去除转义 3 * 4 * @access public 5 * @param mix $value 6 * 7 * @return mix 8 */ 9 function stripslashes_deep($value)10 {11 if (empty($value))12 {13 return $value;14 }15 else16 {17 return is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value);18 }19 } View Code 13、将一个字串中含有全角的数字字符、字母、空格或'%+-()'字符转换为相应半角字符
1 /** 2 * 将一个字串中含有全角的数字字符、字母、空格或'%+-()'字符转换为相应半角字符 3 * 4 * @access public 5 * @param string $str 待转换字串 6 * 7 * @return string $str 处理后字串 8 */ 9 function make_semiangle($str)10 {11 $arr = array('０' => '0', '１' => '1', '２' => '2', '３' => '3', '４' => '4',12 '５' => '5', '６' => '6', '７' => '7', '８' => '8', '９' => '9',13 'Ａ' => 'A', 'Ｂ' => 'B', 'Ｃ' => 'C', 'Ｄ' => 'D', 'Ｅ' => 'E',14 'Ｆ' => 'F', 'Ｇ' => 'G', 'Ｈ' => 'H', 'Ｉ' => 'I', 'Ｊ' => 'J',15 'Ｋ' => 'K', 'Ｌ' => 'L', 'Ｍ' => 'M', 'Ｎ' => 'N', 'Ｏ' => 'O',16 'Ｐ' => 'P', 'Ｑ' => 'Q', 'Ｒ' => 'R', 'Ｓ' => 'S', 'Ｔ' => 'T',17 'Ｕ' => 'U', 'Ｖ' => 'V', 'Ｗ' => 'W', 'Ｘ' => 'X', 'Ｙ' => 'Y',18 'Ｚ' => 'Z', 'ａ' => 'a', 'ｂ' => 'b', 'ｃ' => 'c', 'ｄ' => 'd',19 'ｅ' => 'e', 'ｆ' => 'f', 'ｇ' => 'g', 'ｈ' => 'h', 'ｉ' => 'i',20 'ｊ' => 'j', 'ｋ' => 'k', 'ｌ' => 'l', 'ｍ' => 'm', 'ｎ' => 'n',21 'ｏ' => 'o', 'ｐ' => 'p', 'ｑ' => 'q', 'ｒ' => 'r', 'ｓ' => 's',22 'ｔ' => 't', 'ｕ' => 'u', 'ｖ' => 'v', 'ｗ' => 'w', 'ｘ' => 'x',23 'ｙ' => 'y', 'ｚ' => 'z',24 '（' => '(', '）' => ')', '〔' => '[', '〕' => ']', '【' => '[',25 '】' => ']', '〖' => '[', '〗' => ']', '“' => '[', '”' => ']',26 '‘' => '[', '’' => ']', '｛' => '{', '｝' => '}', '《' => '<',27 '》' => '>',28 '％' => '%', '＋' => '+', '?' => '-', '－' => '-', '～' => '-',29 '：' => ':', '。' => '.', '、' => ',', '，' => '.', '、' => '.',30 '；' => ',', '？' => '?', '！' => '!', '…' => '-', '‖' => '|',31 '”' => '"', '’' => '`', '‘' => '`', '｜' => '|', '〃' => '"',32 ' ' => ' ');33 34 return strtr($str, $arr);35 } View Code 14、 过滤用户输入的基本数据，防止script攻击
1 /** 2 * 过滤用户输入的基本数据，防止script攻击 3 * 4 * @access public 5 * @return string 6 */ 7 function compile_str($str) 8 { 9 $arr = array('<' => '＜', '>' => '＞');10 11 return strtr($str, $arr);12 } View Code 15、检查文件类型
1 /** 2 * 检查文件类型 3 * 4 * @access public 5 * @param string filename 文件名 6 * @param string realname 真实文件名 7 * @param string limit_ext_types 允许的文件类型 8 * @return string 9 */ 10 function check_file_type($filename, $realname = '', $limit_ext_types = '') 11 { 12 if ($realname) 13 { 14 $extname = strtolower(substr($realname, strrpos($realname, '.') + 1)); 15 } 16 else 17 { 18 $extname = strtolower(substr($filename, strrpos($filename, '.') + 1)); 19 } 20 21 if ($limit_ext_types && stristr($limit_ext_types, '|' . $extname . '|') === false) 22 { 23 return ''; 24 } 25 26 $str = $format = ''; 27 28 $file = @fopen($filename, 'rb'); 29 if ($file) 30 { 31 $str = @fread($file, 0x400); // 读取前 1024 个字节 32 @fclose($file); 33 } 34 else 35 { 36 if (stristr($filename, ROOT_PATH) === false) 37 { 38 if ($extname == 'jpg' || $extname == 'jpeg' || $extname == 'gif' || $extname == 'png' || $extname == 'doc' || 39 $extname == 'xls' || $extname == 'txt' || $extname == 'zip' || $extname == 'rar' || $extname == 'ppt' || 40 $extname == 'pdf' || $extname == 'rm' || $extname == 'mid' || $extname == 'wav' || $extname == 'bmp' || 41 $extname == 'swf' || $extname == 'chm' || $extname == 'sql' || $extna
The Continued Use of PHP: Reasons for Its EnduranceApr 19, 2025 am 12:23 AMWhat’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.
PHP and Python: Exploring Their Similarities and DifferencesApr 19, 2025 am 12:21 AMPHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.
PHP and Python: Different Paradigms ExplainedApr 18, 2025 am 12:26 AMPHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.
PHP and Python: A Deep Dive into Their HistoryApr 18, 2025 am 12:25 AMPHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.
Choosing Between PHP and Python: A GuideApr 18, 2025 am 12:24 AMPHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.
PHP and Frameworks: Modernizing the LanguageApr 18, 2025 am 12:14 AMPHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.
PHP's Impact: Web Development and BeyondApr 18, 2025 am 12:10 AMPHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip
How does PHP type hinting work, including scalar types, return types, union types, and nullable types?Apr 17, 2025 am 12:25 AMPHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.
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mPDF
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),
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
WebStorm Mac version
Useful JavaScript development tools
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
Zend Studio 13.0.1
Powerful PHP integrated development environment
