php一些基本函数 html调用php函数 excel函数 二次函
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2022-04-06 15:01:14
...
($key, $string, $decrypt){
if($decrypt){
$decrypted = rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, md5($key), base64_decode($string), MCRYPT_MODE_CBC, md5(md5($key))), "12");
return $decrypted;
}else{
$encrypted = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, md5($key), $string, MCRYPT_MODE_CBC, md5(md5($key))));
return $encrypted;
}
}
//以下是将字符串“Helloweba欢迎您”分别加密和解密
//加密:
echo encryptDecrypt('password', 'Helloweba欢迎您',0);
//解密:
echo "
";
echo encryptDecrypt('password', 'z0JAx4qMwcF+db5TNbp/xwdUM84snRsXvvpXuaCa4Bk=',1);
echo "
";
// 指定长度随机数
function generateRandomString($length = 10) {
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$randomString = '';
for ($i = 0; $i $length; $i++) {
$randomString .= $characters[rand(0, strlen($characters) - 1)];
}
return $randomString;
}
echo generateRandomString(5);
echo "
";
// 获取文件扩展名
function getExtension($filename){
$myext = substr($filename, strrpos($filename, '.'));
return str_replace('.','',$myext);
}
$filename = '我的文档.doc';
echo getExtension($filename);
echo "
";
// 获取文件大小
function formatSize($size) {
$sizes = array(" Bytes", " KB", " MB", " GB", " TB", " PB", " EB", " ZB", " YB");
if ($size == 0) {
return('n/a');
} else {
return (round($size/pow(1024, ($i = floor(log($size, 1024)))), 2) . $sizes[$i]);
}
}
echo formatSize(12350006);
echo "
";
// 替换标签
function stringParser($string,$replacer){
$result = str_replace(array_keys($replacer), array_values($replacer),$string);
return $result;
}
$string = 'The {b}anchor text{/b} is the {b}actual word{/b} or words used {br}to describe the link {br}itself';
$replace_array = array('{b}' => '','{/b}' => '','{br}' => '
');
echo "替换后:".stringParser($string,$replace_array);
echo "
";
// 目录下文件
function listDirFiles($DirPath){
if($dir = opendir($DirPath)){
while(($file = readdir($dir))!== false){
if(!is_dir($DirPath.$file)) {
echo "filename: $file
";
}
}
}
}
listDirFiles('D:/');
echo "
";
// PHP获取当前页面URL
function curPageURL() {
$pageURL = 'http';
if (!empty($_SERVER['HTTPS'])) {$pageURL .= "s";}
$pageURL .= "://";
if ($_SERVER["SERVER_PORT"] != "80") {
$pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
} else {
$pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
}
return $pageURL;
}
echo curPageURL();
// 强制下载
function download($filename){
if ((isset($filename))&&(file_exists($filename))){
header("Content-length: ".filesize($filename));
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="' . $filename . '"');
readfile("$filename");
} else {
echo "Looks like file does not exist!";
}
}
// download("D:/key.txt");
//获取用户真实IP
function getIp() {
if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))$ip = getenv("HTTP_CLIENT_IP");
else
if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))$ip = getenv("HTTP_X_FORWARDED_FOR");
else
if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))$ip = getenv("REMOTE_ADDR");
else
if (isset ($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))$ip = $_SERVER['REMOTE_ADDR'];
else
$ip = "unknown";
return ($ip);
}
echo "
";
echo getIp();
echo "
";
function message($msgTitle,$message,$jumpUrl){
$str = '';
$str .= '';
$str .= '';
$str .= '';
$str .= '页面提示 ';
$str .= ';
$str .= '*{margin:0; padding:0}a{color:#369; text-decoration:none;}a:hover{text-decoration:underline}body{height:100%; font:12px/18px Tahoma, Arial, sans-serif; color:#424242; background:#fff}.message{width:450px; height:120px; margin:16% auto; border:1px solid #99b1c4; background:#ecf7fb}.message h3{height:28px; line-height:28px; background:#2c91c6; text-align:center; color:#fff; font-size:14px}.msg_txt{padding:10px; margin-top:8px}.msg_txt h4{line-height:26px; font-size:14px}.msg_txt h4.red{color:#f30}.msg_txt p{line-height:22px}';
$str .= '';
$str .= '';
$str .= '';
$str .= '';
$str .= ''
.$msgTitle.'';
$str .= '';
$str .= ''
.$message.'';
$str .= '系统将在 3 秒后自动跳转,如果不想等待,直接点击 这里 跳转
';
$str .= ".$jumpUrl."')',2000)";
$str .= '
';
$str .= '
';
$str .= '';
$str .= '';
echo $str;
}
// message('操作提示','操作成功!','http://www.baidu.com');
function getClientIp() {
$ip = NULL;
if (isset($_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)) 63; $ip : '0.0.0.0';
return $ip;
}
/**
* 获取在线IP
* @return String
*/
function getOnlineIp($format=0) {
global $S_GLOBAL;
if(empty($S_GLOBAL['onlineip'])) {
if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'), 'unknown')) {
$onlineip = getenv('HTTP_CLIENT_IP');
} elseif(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'), 'unknown')) {
$onlineip = getenv('HTTP_X_FORWARDED_FOR');
} elseif(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'), 'unknown')) {
$onlineip = getenv('REMOTE_ADDR');
} elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], 'unknown')) {
$onlineip = $_SERVER['REMOTE_ADDR'];
}
preg_match("/[\d\.]{7,15}/", $onlineip, $onlineipmatches);
$S_GLOBAL['onlineip'] = $onlineipmatches[0] 63; $onlineipmatches[0] : 'unknown';
}
if($format) {
$ips = explode('.', $S_GLOBAL['onlineip']);
for($i=0;$i<3;$i++) {
$ips[$i] = intval($ips[$i]);
}
return sprintf('%03d%03d%03d', $ips[0], $ips[1], $ips[2]);
} else {
return $S_GLOBAL['onlineip'];
}
}
/**
* 获取url
* @return [type] [description]
*/
function getUrl(){
$pageURL = 'http';
if (isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on") {
$pageURL .= "s";
}
$pageURL .= "://";
if ($_SERVER["SERVER_PORT"] != "80") {
$pageURL .= $_SERVER["HTTP_HOST"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];
} else {
$pageURL .= $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"];
}
return $pageURL;
}
/**
* 获取当前站点的访问路径根目录
* @return [type] [description]
*/
function getSiteUrl() {
$uri = $_SERVER['REQUEST_URI']63;$_SERVER['REQUEST_URI']:($_SERVER['PHP_SELF']63;$_SERVER['PHP_SELF']:$_SERVER['SCRIPT_NAME']);
return 'http://'.$_SERVER['HTTP_HOST'].substr($uri, 0, strrpos($uri, '/')+1);
}
/**
* 字符串截取,支持中文和其他编码
* @param [string] $str [字符串]
* @param integer $start [起始位置]
* @param integer $length [截取长度]
* @param string $charset [字符串编码]
* @param boolean $suffix [是否有省略号]
* @return [type] [description]
*/
function msubstr($str, $start=0, $length=15, $charset="utf-8", $suffix=true) {
if(function_exists("mb_substr")) {
return mb_substr($str, $start, $length, $charset);
} elseif(function_exists('iconv_substr')) {
return iconv_substr($str,$start,$length,$charset);
}
$re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/";
$re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/";
$re['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/";
$re['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/";
preg_match_all($re[$charset], $str, $match);
$slice = join("",array_slice($match[0], $start, $length));
if($suffix) {
return $slice."…";
}
return $slice;
}
/**
* php 实现js escape 函数
* @param [type] $string [description]
* @param string $encoding [description]
* @return [type] [description]
*/
function escape($string, $encoding = 'UTF-8'){
$return = null;
for ($x = 0; $x < mb_strlen($string, $encoding);$x ++)
{
$str = mb_substr($string, $x, 1, $encoding);
if (strlen($str) > 1) { // 多字节字符
$return .= "%u" . strtoupper(bin2hex(mb_convert_encoding($str, 'UCS-2', $encoding)));
} else {
$return .= "%" . strtoupper(bin2hex($str));
}
}
return $return;
}
/**
* php 实现 js unescape函数
* @param [type] $str [description]
* @return [type] [description]
*/
function unescape($str) {
$str = rawurldecode($str);
preg_match_all("/(?:%u.{4})|.{4};|\d+;|.+/U",$str,$r);
$ar = $r[0];
foreach($ar as $k=>$v) {
if(substr($v,0,2) == "%u"){
$ar[$k] = iconv("UCS-2","utf-8//IGNORE",pack("H4",substr($v,-4)));
} elseif(substr($v,0,3) == "") {
$ar[$k] = iconv("UCS-2","utf-8",pack("H4",substr($v,3,-1)));
} elseif(substr($v,0,2) == "") {
echo substr($v,2,-1)."";
$ar[$k] = iconv("UCS-2","utf-8",pack("n",substr($v,2,-1)));
}
}
return join("",$ar);
}
/**
* 数字转人名币
* @param [type] $num [description]
* @return [type] [description]
*/
function num2rmb ($num) {
$c1 = "零壹贰叁肆伍陆柒捌玖";
$c2 = "分角元拾佰仟万拾佰仟亿";
$num = round($num, 2);
$num = $num * 100;
if (strlen($num) > 10) {
return "oh,sorry,the number is too long!";
}
$i = 0;
$c = "";
while (1) {
if ($i == 0) {
$n = substr($num, strlen($num)-1, 1);
} else {
$n = $num % 10;
}
$p1 = substr($c1, 3 * $n, 3);
$p2 = substr($c2, 3 * $i, 3);
if ($n != '0' || ($n == '0' && ($p2 == '亿' || $p2 == '万' || $p2 == '元'))) {
$c = $p1 . $p2 . $c;
} else {
$c = $p1 . $c;
}
$i = $i + 1;
$num = $num / 10;
$num = (int)$num;
if ($num == 0) {
break;
}
}
$j = 0;
$slen = strlen($c);
while ($j < $slen) {
$m = substr($c, $j, 6);
if ($m == '零元' || $m == '零万' || $m == '零亿' || $m == '零零') {
$left = substr($c, 0, $j);
$right = substr($c, $j + 3);
$c = $left . $right;
$j = $j-3;
$slen = $slen-3;
}
$j = $j + 3;
}
if (substr($c, strlen($c)-3, 3) == '零') {
$c = substr($c, 0, strlen($c)-3);
} // if there is a '0' on the end , chop it out
return $c . "整";
}
/**
* 特殊的字符
* @param [type] $str [description]
* @return [type] [description]
*/
function makeSemiangle($str) {
$arr = array(
'0' => '0', '1' => '1', '2' => '2', '3' => '3', '4' => '4',
'5' => '5', '6' => '6', '7' => '7', '8' => '8', '9' => '9',
'A' => 'A', 'B' => 'B', 'C' => 'C', 'D' => 'D', 'E' => 'E',
'F' => 'F', 'G' => 'G', 'H' => 'H', 'I' => 'I', 'J' => 'J',
'K' => 'K', 'L' => 'L', 'M' => 'M', 'N' => 'N', 'O' => 'O',
'P' => 'P', 'Q' => 'Q', 'R' => 'R', 'S' => 'S', 'T' => 'T',
'U' => 'U', 'V' => 'V', 'W' => 'W', 'X' => 'X', 'Y' => 'Y',
'Z' => 'Z', 'a' => 'a', 'b' => 'b', 'c' => 'c', 'd' => 'd',
'e' => 'e', 'f' => 'f', 'g' => 'g', 'h' => 'h', 'i' => 'i',
'j' => 'j', 'k' => 'k', 'l' => 'l', 'm' => 'm', 'n' => 'n',
'o' => 'o', 'p' => 'p', 'q' => 'q', 'r' => 'r', 's' => 's',
't' => 't', 'u' => 'u', 'v' => 'v', 'w' => 'w', 'x' => 'x',
'y' => 'y', 'z' => 'z',
'(' => '(', ')' => ')', '〔' => '[', '〕' => ']', '【' => '[',
'】' => ']', '〖' => '[', '〗' => ']', '{' => '{', '}' => '}', '《' => '<',
'》' => '>',
'%' => '%', '+' => '+', '—' => '-', '-' => '-', '~' => '-',
':' => ':', '。' => '.', '、' => ',', ',' => '.', '、' => '.',
';' => ';', '?' => '?', '!' => '!', '…' => '-', '‖' => '|',
'”' => '"', '“' => '"', '' => '`', '‘' => '`', '|' => '|', '〃' => '"',
' ' => ' ','.' => '.');
return strtr($str, $arr);
}
/**
* 下载
* @param [type] $filename [description]
* @param string $dir [description]
* @return [type] [description]
*/
function downloads($filename,$dir='./'){
$filepath = $dir.$filename;
if (!file_exists($filepath)){
header("Content-type: text/html; charset=utf-8");
echo "File not found!";
exit;
} else {
$file = fopen($filepath,"r");
Header("Content-type: application/octet-stream");
Header("Accept-Ranges: bytes");
Header("Accept-Length: ".filesize($filepath));
Header("Content-Disposition: attachment; filename=".$filename);
echo fread($file, filesize($filepath));
fclose($file);
}
}
/**
* 创建一个目录树
* @param [type] $dir [description]
* @param integer $mode [description]
* @return [type] [description]
*/
function mkdirs($dir, $mode = 0777) {
if (!is_dir($dir)) {
mkdirs(dirname($dir), $mode);
return mkdir($dir, $mode);
}
return true;
}
?>
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