33个超级有用必须要收藏的PHP代码样例
本文共 12759 字，大约阅读时间需要 42 分钟。
PHP代码样例
" . $label . htmlspecialchars($output, ENT_QUOTES) . ""; } else { $output = $label . print_r($var, true); } } else { ob_start(); var_dump($var); $output = ob_get_clean(); if (!extension_loaded('xdebug')) { $output = preg_replace("/\]\=\>\n(\s+)/m", "] => ", $output); $output = '' . $label . htmlspecialchars($output, ENT_QUOTES) . '
'; } } if ($echo) { echo $output; return null; } else return $output; } /** * 获取客户端IP地址 */ static public function getClientIP() { static $ip = NULL; if ($ip !== NULL) return $ip; if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']); $pos = array_search('unknown', $arr); if (false !== $pos) unset($arr[$pos]); $ip = trim($arr[0]); } elseif (isset($_SERVER['HTTP_CLIENT_IP'])) { $ip = $_SERVER['HTTP_CLIENT_IP']; } elseif (isset($_SERVER['REMOTE_ADDR'])) { $ip = $_SERVER['REMOTE_ADDR']; } // IP地址合法验证 $ip = ( false !== ip2long($ip) ) ? $ip : '0.0.0.0'; return $ip; } /** * 循环创建目录 */ static public function mkdir($dir, $mode = 0777) { if (is_dir($dir) || @mkdir($dir, $mode)) return true; if (!mk_dir(dirname($dir), $mode)) return false; return @mkdir($dir, $mode); } /** * 格式化单位 */ static public function byteFormat($size, $dec = 2) { $a = array("B", "KB", "MB", "GB", "TB", "PB"); $pos = 0; while ($size >= 1024) { $size /= 1024; $pos++; } return round($size, $dec) . " " . $a[$pos]; } /** * 下拉框，单选按钮 自动选择 * * @param $string 输入字符 * @param $param 条件 * @param $type 类型 * selected checked * @return string */ static public function selected($string, $param = 1, $type = 'select') { if (is_array($param)) { $true = in_array($string, $param); } elseif ($string == $param) { $true = true; } if ($true) $return = $type == 'select' ? 'selected="selected"' : 'checked="checked"'; echo $return; } /** * 获得来源类型 post get * * @return unknown */ static public function method() { return strtoupper(isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] : 'GET' ); } /** * 提示信息 */ static public function message($action = 'success', $content = '', $redirect = 'javascript:history.back(-1);', $timeout = 4) { switch ($action) { case 'success': $titler = '操作完成'; $class = 'message_success'; $images = 'message_success.png'; break; case 'error': $titler = '操作未完成'; $class = 'message_error'; $images = 'message_error.png'; break; case 'errorBack': $titler = '操作未完成'; $class = 'message_error'; $images = 'message_error.png'; break; case 'redirect': header("Location:$redirect"); break; case 'script': if (empty($redirect)) { exit(''); } else { exit(''); } break; } // 信息头部 $header = ' 操作提示 '; // 信息底部 $footer = ''; $body = ' ->baseUrl . '/static/images/' . $images . ')
' . $content . '
系统自动跳转在 ' . $timeout . ' 秒后，如果不想等待，点击这里跳转
'; exit($header . $body . $footer); } /** * 查询字符生成 */ static public function buildCondition(array $getArray, array $keys = array()) { if ($getArray) { foreach ($getArray as $key => $value) { if (in_array($key, $keys) && $value) { $arr[$key] = CHtml::encode(strip_tags($value)); } } return $arr; } } /** * base64_encode */ static function b64encode($string) { $data = base64_encode($string); $data = str_replace(array('+', '/', '='), array('-', '_', ''), $data); return $data; } /** * base64_decode */ static function b64decode($string) { $data = str_replace(array('-', '_'), array('+', '/'), $string); $mod4 = strlen($data) % 4; if ($mod4) { $data .= substr('====', $mod4); } return base64_decode($data); } /** * 验证邮箱 */ public static function email($str) { if (empty($str)) return true; $chars = "/^([a-z0-9+_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,6}\$/i"; if (strpos($str, '@') !== false && strpos($str, '.') !== false) { if (preg_match($chars, $str)) { return true; } else { return false; } } else { return false; } } /** * 验证手机号码 */ public static function mobile($str) { if (empty($str)) { return true; } return preg_match('#^13[\d]{9}$|14^[0-9]\d{8}|^15[0-9]\d{8}$|^18[0-9]\d{8}$#', $str); } /** * 验证固定电话 */ public static function tel($str) { if (empty($str)) { return true; } return preg_match('/^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/', trim($str)); } /** * 验证qq号码 */ public static function qq($str) { if (empty($str)) { return true; } return preg_match('/^[1-9]\d{4,12}$/', trim($str)); } /** * 验证邮政编码 */ public static function zipCode($str) { if (empty($str)) { return true; } return preg_match('/^[1-9]\d{5}$/', trim($str)); } /** * 验证ip */ public static function ip($str) { if (empty($str)) return true; if (!preg_match('#^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$#', $str)) { return false; } $ip_array = explode('.', $str); //真实的ip地址每个数字不能大于255（0-255） return ( $ip_array[0] <= 255 && $ip_array[1] <= 255 && $ip_array[2] <= 255 && $ip_array[3] <= 255 ) ? true : false; } /** * 验证身份证(中国) */ public static function idCard($str) { $str = trim($str); if (empty($str)) return true; if (preg_match("/^([0-9]{15}|[0-9]{17}[0-9a-z])$/i", $str)) return true; else return false; } /** * 验证网址 */ public static function url($str) { if (empty($str)) return true; return preg_match('#(http|https|ftp|ftps)://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?#i', $str) ? true : false; } /** * 根据ip获取地理位置 * @param $ip * return :ip,beginip,endip,country,area */ public static function getlocation($ip = '') { $ip = new XIp(); $ipArr = $ip->getlocation($ip); return $ipArr; } /** * 中文转换为拼音 */ public static function pinyin($str) { $ip = new XPinyin(); return $ip->output($str); } /** * 拆分sql * * @param $sql */ public static function splitsql($sql) { $sql = preg_replace("/TYPE=(InnoDB|MyISAM|MEMORY)( DEFAULT CHARSET=[^; ]+)?/", "ENGINE=\\1 DEFAULT CHARSET=" . Yii::app()->db->charset, $sql); $sql = str_replace("\r", "\n", $sql); $ret = array(); $num = 0; $queriesarray = explode(";\n", trim($sql)); unset($sql); foreach ($queriesarray as $query) { $ret[$num] = ''; $queries = explode("\n", trim($query)); $queries = array_filter($queries); foreach ($queries as $query) { $str1 = substr($query, 0, 1); if ($str1 != '#' && $str1 != '-') $ret[$num] .= $query; } $num++; } return ($ret); } /** * 字符截取 * * @param $string * @param $length * @param $dot */ public static function cutstr($string, $length, $dot = '...', $charset = 'utf-8') { if (strlen($string) <= $length) return $string; $pre = chr(1); $end = chr(1); $string = str_replace(array('&', '"', '<', '>'), array($pre . '&' . $end, $pre . '"' . $end, $pre . '<' . $end, $pre . '>' . $end), $string); $strcut = ''; if (strtolower($charset) == 'utf-8') { $n = $tn = $noc = 0; while ($n < strlen($string)) { $t = ord($string[$n]); if ($t == 9 || $t == 10 || ( 32 <= $t && $t <= 126 )) { $tn = 1; $n++; $noc++; } elseif (194 <= $t && $t <= 223) { $tn = 2; $n += 2; $noc += 2; } elseif (224 <= $t && $t <= 239) { $tn = 3; $n += 3; $noc += 2; } elseif (240 <= $t && $t <= 247) { $tn = 4; $n += 4; $noc += 2; } elseif (248 <= $t && $t <= 251) { $tn = 5; $n += 5; $noc += 2; } elseif ($t == 252 || $t == 253) { $tn = 6; $n += 6; $noc += 2; } else { $n++; } if ($noc >= $length) { break; } } if ($noc > $length) { $n -= $tn; } $strcut = substr($string, 0, $n); } else { for ($i = 0; $i < $length; $i++) { $strcut .= ord($string[$i]) > 127 ? $string[$i] . $string[++$i] : $string[$i]; } } $strcut = str_replace(array($pre . '&' . $end, $pre . '"' . $end, $pre . '<' . $end, $pre . '>' . $end), array('&', '"', '<', '>'), $strcut); $pos = strrpos($strcut, chr(1)); if ($pos !== false) { $strcut = substr($strcut, 0, $pos); } return $strcut . $dot; } /** * 描述格式化 * @param $subject */ public static function clearCutstr($subject, $length = 0, $dot = '...', $charset = 'utf-8') { if ($length) { return XUtils::cutstr(strip_tags(str_replace(array("\r\n"), '', $subject)), $length, $dot, $charset); } else { return strip_tags(str_replace(array("\r\n"), '', $subject)); } } /** * 检测是否为英文或英文数字的组合 * * @return unknown */ public static function isEnglist($param) { if (!eregi("^[A-Z0-9]{1,26}$", $param)) { return false; } else { return true; } } /** * 将自动判断网址是否加http:// * * @param $http * @return string */ public static function convertHttp($url) { if ($url == 'http://' || $url == '') return ''; if (substr($url, 0, 7) != 'http://' && substr($url, 0, 8) != 'https://') $str = 'http://' . $url; else $str = $url; return $str; } /* 标题样式格式化 */ public static function titleStyle($style) { $text = ''; if ($style['bold'] == 'Y') { $text .='font-weight:bold;'; $serialize['bold'] = 'Y'; } if ($style['underline'] == 'Y') { $text .='text-decoration:underline;'; $serialize['underline'] = 'Y'; } if (!empty($style['color'])) { $text .='color:#' . $style['color'] . ';'; $serialize['color'] = $style['color']; } return array('text' => $text, 'serialize' => empty($serialize) ? '' : serialize($serialize)); } // 自动转换字符集 支持数组转换 static public function autoCharset($string, $from = 'gbk', $to = 'utf-8') { $from = strtoupper($from) == 'UTF8' ? 'utf-8' : $from; $to = strtoupper($to) == 'UTF8' ? 'utf-8' : $to; if (strtoupper($from) === strtoupper($to) || empty($string) || (is_scalar($string) && !is_string($string))) { //如果编码相同或者非字符串标量则不转换 return $string; } if (is_string($string)) { if (function_exists('mb_convert_encoding')) { return mb_convert_encoding($string, $to, $from); } elseif (function_exists('iconv')) { return iconv($from, $to, $string); } else { return $string; } } elseif (is_array($string)) { foreach ($string as $key => $val) { $_key = self::autoCharset($key, $from, $to); $string[$_key] = self::autoCharset($val, $from, $to); if ($key != $_key) unset($string[$key]); } return $string; } else { return $string; } } /* 标题样式恢复 */ public static function titleStyleRestore($serialize, $scope = 'bold') { $unserialize = unserialize($serialize); if ($unserialize['bold'] == 'Y' && $scope == 'bold') return 'Y'; if ($unserialize['underline'] == 'Y' && $scope == 'underline') return 'Y'; if ($unserialize['color'] && $scope == 'color') return $unserialize['color']; } /** * 列出文件夹列表 * * @param $dirname * @return unknown */ public static function getDir($dirname) { $files = array(); if (is_dir($dirname)) { $fileHander = opendir($dirname); while (( $file = readdir($fileHander) ) !== false) { $filepath = $dirname . '/' . $file; if (strcmp($file, '.') == 0 || strcmp($file, '..') == 0 || is_file($filepath)) { continue; } $files[] = self::autoCharset($file, 'GBK', 'UTF8'); } closedir($fileHander); } else { $files = false; } return $files; } /** * 列出文件列表 * * @param $dirname * @return unknown */ public static function getFile($dirname) { $files = array(); if (is_dir($dirname)) { $fileHander = opendir($dirname); while (( $file = readdir($fileHander) ) !== false) { $filepath = $dirname . '/' . $file; if (strcmp($file, '.') == 0 || strcmp($file, '..') == 0 || is_dir($filepath)) { continue; } $files[] = self::autoCharset($file, 'GBK', 'UTF8'); ; } closedir($fileHander); } else { $files = false; } return $files; } /** * [格式化图片列表数据] * * @return [type] [description] */ public static function imageListSerialize($data) { foreach ((array) $data['file'] as $key => $row) { if ($row) { $var[$key]['fileId'] = $data['fileId'][$key]; $var[$key]['file'] = $row; } } return array('data' => $var, 'dataSerialize' => empty($var) ? '' : serialize($var)); } /** * 反引用一个引用字符串 * @param $string * @return string */ static function stripslashes($string) { if (is_array($string)) { foreach ($string as $key => $val) { $string[$key] = self::stripslashes($val); } } else { $string = stripslashes($string); } return $string; } /** * 引用字符串 * @param $string * @param $force * @return string */ static function addslashes($string, $force = 1) { if (is_array($string)) { foreach ($string as $key => $val) { $string[$key] = self::addslashes($val, $force); } } else { $string = addslashes($string); } return $string; } /** * 格式化内容 */ static function formatHtml($content, $options = '') { $purifier = new CHtmlPurifier(); if ($options != false) $purifier->options = $options; return $purifier->purify($content); }}?> http://www.phpxs.com/post/4116
转载地址：http://frzxi.baihongyu.com/
你可能感兴趣的文章
【Python基础1】变量和字符串定义
查看>>
【Python基础2】python字符串方法及格式设置
查看>>
【Python】random生成随机数
查看>>
【Python基础3】数字类型与常用运算
查看>>
【Python基础4】for循环、while循环与if分支
查看>>
【Python基础6】格式化字符串
查看>>
【Python基础7】字典
查看>>
【Python基础8】函数参数
查看>>
【Python基础9】浅谈深浅拷贝及变量赋值
查看>>
Jenkins定制一个具有筛选功能的列表视图
查看>>
【Python基础10】探索模块
查看>>
【Python】将txt文件转换为html
查看>>
[Linux]Shell脚本实现按照模块信息拆分文件内容
查看>>
idea添加gradle模块报错The project is already registered
查看>>
在C++中如何实现模板函数的外部调用
查看>>
在C++中，关键字explicit有什么作用
查看>>
C++中异常的处理方法以及使用了哪些关键字
查看>>
内存分配的形式有哪些？ C++
查看>>
什么是内存泄露，如何避免内存泄露 C++
查看>>
栈和堆的空间大小 C++
查看>>