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PHP通用代码
一个是curl的post请求函数,主要用于各平台api开发,进行请求接口的处理函数,如果你有多个平台,互相之间要传递数据,用这个函数绝对好用:
php获取文件的扩展名:
还有一个是可逆的加密、解密函数(加密相同的字符串都会加密成不同的字符串的,非常好用)
PHP Code复制内容到剪贴板
- /**
- * curl访问程序接口
- * @param string
- * @return array
- */
- function getCurlDate($url, $datas, $key) {
- $datas[‘time‘] = $_SERVER[‘REQUEST_TIME‘] + 300;
- $post_data[‘post‘] = urlencode(authcode(serialize($datas), "ENCODE", $key));
- // echo $url;
- $ch = curl_init();
- curl_setopt($ch, CURLOPT_URL, $url);
- curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
- // 我们在POST数据哦!
- curl_setopt($ch, CURLOPT_POST, 1);
- // 把post的变量加上
- curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
- $output = curl_exec($ch);
- // dump(curl_error($ch));
- curl_close($ch);
- return json_decode($output, true);
- }
C/C++ Code复制内容到剪贴板
- /**
- * @获取文件扩展名
- * @$pic string 图片路径
- */
- function get_file_ext($pic) {
- return substr($pic, strrpos($pic, ‘.‘) + 1);
- }
PHP Code复制内容到剪贴板
- /**
- * 字符串加密
- * @param $string 需加密的字符
- * @param $operation 加密或解密
- * @param $key 网站加密key,防止破解
- * @return string
- */
- function authcode($string, $operation = ‘DECODE‘, $key = ‘‘, $expiry = 0) {
- $ckey_length = 4;
- $key = md5($key ? $key : ‘^www.itokit.com$‘);
- $keya = md5(substr($key, 0, 16));
- $keyb = md5(substr($key, 16, 16));
- $keyc = $ckey_length ? ($operation == ‘DECODE‘ ? substr($string, 0, $ckey_length) : substr(md5(microtime()), -$ckey_length)) : ‘‘;
- $cryptkey = $keya . md5($keya . $keyc);
- $key_length = strlen($cryptkey);
- $string = $operation == ‘DECODE‘ ? base64_decode(substr($string, $ckey_length)) : sprintf(‘%010d‘, $expiry ? $expiry + time() : 0) . substr(md5($string . $keyb), 0, 16) . $string;
- $string_length = strlen($string);
- $result = ‘‘;
- $box = range(0, 255);
- $rndkey = array();
- for ($i = 0; $i <= 255; $i++) {
- $rndkey[$i] = ord($cryptkey[$i % $key_length]);
- }
- for ($j = $i = 0; $i < 256; $i++) {
- $j = ($j + $box[$i] + $rndkey[$i]) % 256;
- $tmp = $box[$i];
- $box[$i] = $box[$j];
- $box[$j] = $tmp;
- }
- for ($a = $j = $i = 0; $i < $string_length; $i++) {
- $a = ($a + 1) % 256;
- $j = ($j + $box[$a]) % 256;
- $tmp = $box[$a];
- $box[$a] = $box[$j];
- $box[$j] = $tmp;
- $result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256]));
- }
- if ($operation == ‘DECODE‘) {
- if ((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26) . $keyb), 0, 16)) {
- return substr($result, 26);
- } else {
- return ‘‘;
- }
- } else {
- return $keyc . str_replace(‘=‘, ‘‘, base64_encode($result));
- }
- }
PHP Code复制内容到剪贴板
- /**
- * 字符串转十六进制
- * @param unknown_type $s
- */
- function str2hex($s) {
- $r = "";
- $hexes = array ("0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f");
- for ($i=0; $i<strlen($s); $i++)
- $r .= ($hexes [(ord($s{$i}) >> 4)] . $hexes [(ord($s{$i}) & 0xf)]);
- return $r;
- }
PHP Code复制内容到剪贴板
- /**
- * 十六进制转字符串
- * @param unknown_type $s
- */
- function hex2str($s) {
- $r = "";
- for ( $i = 0; $i<strlen($s); $i += 2)
- {
- $x1 = ord($s{$i});
- $x1 = ($x1>=48 && $x1<58) ? $x1-48 : $x1-97+10;
- $x2 = ord($s{$i+1});
- $x2 = ($x2>=48 && $x2<58) ? $x2-48 : $x2-97+10;
- $r .= chr((($x1 << 4) & 0xf0) | ($x2 & 0x0f));
- }
- return $r;
- }
PHP Code复制内容到剪贴板
- /**
- * 返回经addslashes处理过的字符串或数组
- * @param $string 需要处理的字符串或数组
- * @return mixed
- */
- function new_addslashes($string){
- if(!is_array($string)) return addslashes($string);
- foreach($string as $key => $val) $string[$key] = new_addslashes($val);
- return $string;
- }
- /**/
- function addslashes_deep($string)
- {
- return is_array($string) ? array_map(‘addslashes_deep‘, $string) : addslashes($string);
- }
PHP Code复制内容到剪贴板
- /**
- * 返回经stripslashes处理过的字符串或数组
- * @param $string 需要处理的字符串或数组
- * @return mixed
- */
- function new_stripslashes($string) {
- if(!is_array($string)) return stripslashes($string);
- foreach($string as $key => $val) $string[$key] = new_stripslashes($val);
- return $string;
- }
- /**/
- function stripslashes_deep($string)
- {
- return is_array($string) ? array_map(‘stripslashes_deep‘, $string) : stripslashes($string);
- }
PHP Code复制内容到剪贴板
- /**
- * 返回经 htmlspecialchars 处理过的字符串或数组
- * @param $string 需要处理的字符串或数组
- * @return mixed
- */
- function new_html_special_chars($string) {
- if(!is_array($string)) return htmlspecialchars($string);
- foreach($string as $key => $val) $string[$key] = new_html_special_chars($val);
- return $string;
- }
PHP Code复制内容到剪贴板
- /**
- * 获取请求ip
- *
- * @return ip地址
- */
- function ip() {
- if(getenv(‘HTTP_CLIENT_IP‘) && strcasecmp(getenv(‘HTTP_CLIENT_IP‘), ‘unknown‘)) {
- $ip = getenv(‘HTTP_CLIENT_IP‘);
- } elseif(getenv(‘HTTP_X_FORWARDED_FOR‘) && strcasecmp(getenv(‘HTTP_X_FORWARDED_FOR‘), ‘unknown‘)) {
- $ip = getenv(‘HTTP_X_FORWARDED_FOR‘);
- } elseif(getenv(‘REMOTE_ADDR‘) && strcasecmp(getenv(‘REMOTE_ADDR‘), ‘unknown‘)) {
- $ip = getenv(‘REMOTE_ADDR‘);
- } elseif(isset($_SERVER[‘REMOTE_ADDR‘]) && $_SERVER[‘REMOTE_ADDR‘] && strcasecmp($_SERVER[‘REMOTE_ADDR‘], ‘unknown‘)) {
- $ip = $_SERVER[‘REMOTE_ADDR‘];
- }
- return preg_match ( ‘/[\d\.]{7,15}/‘, $ip, $matches ) ? $matches [0] : ‘‘;
- }
PHP Code复制内容到剪贴板
- /**
- * 字符截取 支持UTF8/GBK
- * @param $string
- * @param $length
- * @param $dot
- */
- function str_cut($string, $length, $dot = ‘...‘) {
- $strlen = strlen($string);
- if($strlen <= $length) return $string;
- $string = str_replace(array(‘ ‘,‘ ‘, ‘&‘, ‘"‘, ‘‘‘, ‘“‘, ‘”‘, ‘—‘, ‘<‘, ‘>‘, ‘·‘, ‘…‘), array(‘∵‘,‘ ‘, ‘&‘, ‘"‘, "‘", ‘“‘, ‘”‘, ‘—‘, ‘<‘, ‘>‘, ‘·‘, ‘…‘), $string);
- $strcut = ‘‘;
- if(strtolower(CHARSET) == ‘utf-8‘) {
- $length = intval($length-strlen($dot)-$length/3);
- $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);
- $strcut = str_replace(array(‘∵‘, ‘&‘, ‘"‘, "‘", ‘“‘, ‘”‘, ‘—‘, ‘<‘, ‘>‘, ‘·‘, ‘…‘), array(‘ ‘, ‘&‘, ‘"‘, ‘‘‘, ‘“‘, ‘”‘, ‘—‘, ‘<‘, ‘>‘, ‘·‘, ‘…‘), $strcut);
- } else {
- $dotlen = strlen($dot);
- $maxi = $length - $dotlen - 1;
- $current_str = ‘‘;
- $search_arr = array(‘&‘,‘ ‘, ‘"‘, "‘", ‘“‘, ‘”‘, ‘—‘, ‘<‘, ‘>‘, ‘·‘, ‘…‘,‘∵‘);
- $replace_arr = array(‘&‘,‘ ‘, ‘"‘, ‘‘‘, ‘“‘, ‘”‘, ‘—‘, ‘<‘, ‘>‘, ‘·‘, ‘…‘,‘ ‘);
- $search_flip = array_flip($search_arr);
- for ($i = 0; $i < $maxi; $i++) {
- $current_str = ord($string[$i]) > 127 ? $string[$i].$string[++$i] : $string[$i];
- if (in_array($current_str, $search_arr)) {
- $key = $search_flip[$current_str];
- $current_str = str_replace($search_arr[$key], $replace_arr[$key], $current_str);
- }
- $strcut .= $current_str;
- }
- }
- return $strcut.$dot;
- }
PHP Code复制内容到剪贴板
- /**
- * 产生随机字符串
- *
- * @param int $length 输出长度
- * @param string $chars 可选的 ,默认为 0123456789
- * @return string 字符串
- */
- function random($length, $chars = ‘0123456789‘) {
- $hash = ‘‘;
- $max = strlen($chars) - 1;
- for($i = 0; $i < $length; $i++) {
- $hash .= $chars[mt_rand(0, $max)];
- }
- return $hash;
- }
PHP Code复制内容到剪贴板
- /**
- * 将字符串转换为数组
- *
- * @param string $data 字符串
- * @return array 返回数组格式,如果,data为空,则返回空数组
- */
- function string2array($data) {
- if($data == ‘‘) return array();
- eval("\$array = $data;");
- return $array;
- }
PHP Code复制内容到剪贴板
- /**
- * 将数组转换为字符串
- *
- * @param array $data 数组
- * @param bool $isformdata 如果为0,则不使用new_stripslashes处理,可选参数,默认为1
- * @return string 返回字符串,如果,data为空,则返回空
- */
- function array2string($data, $isformdata = 1) {
- if($data == ‘‘) return ‘‘;
- if($isformdata) $data = new_stripslashes($data);
- return addslashes(var_export($data, TRUE));
- }
PHP Code复制内容到剪贴板
- /**
- * 转换字节数为其他单位
- *
- *
- * @param string $filesize 字节大小
- * @return string 返回大小
- */
- function sizecount($filesize) {
- if ($filesize >= 1073741824) {
- $filesize = round($filesize / 1073741824 * 100) / 100 .‘ GB‘;
- } elseif ($filesize >= 1048576) {
- $filesize = round($filesize / 1048576 * 100) / 100 .‘ MB‘;
- } elseif($filesize >= 1024) {
- $filesize = round($filesize / 1024 * 100) / 100 . ‘ KB‘;
- } else {
- $filesize = $filesize.‘ Bytes‘;
- }
- return $filesize;
- }
PHP通用代码
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