1.请求接口的处理函数 /** * 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($output, true); }
2.获取文件扩展名 /** * @获取文件扩展名 * @$pic string 图片路径 */ function get_file_ext($pic) { return substr($pic, strrpos($pic, '.') + 1); }
3.可逆的加密、解密函数 /** * 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)); } }
4.字符串转十六进制 /** * 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; }
5.十六进制转字符串 /** * 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; }
6.返回经addslashes处理过的字符串或数组 /** * 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); }
7.返回经stripslashes处理过的字符串或数组 /** * 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); } 8.返回经 htmlspecialchars 处理过的字符串或数组 /** * 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; }
9.获取请求ip /** * 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] : ''; }
10.字符截取 支持UTF8/GBK /** * 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; }
11.产生随机字符串 /** * 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; }
12.将字符串转换为数组 /** * 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; }
13.将数组转换为字符串 /** * 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)); }
14.转换字节数为其他单位 /** * 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; } |
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