每次新項(xiàng)目, 都要為環(huán)境配置做許多php的修正, 為此, 我整理了這一份通用的php抬頭文件. 使用方法, 將代碼保存為某個(gè)php文件, 然后在項(xiàng)目中引入即可.
該文件的作用如下:
1: 規(guī)范化編碼問(wèn)題, utf-8, 時(shí)間區(qū)域, 數(shù)字長(zhǎng)度都有變更.
2: 規(guī)范化字符轉(zhuǎn)義問(wèn)題, 全部采用php5.3之后的標(biāo)準(zhǔn), 都不轉(zhuǎn)化.
3: session, gzip做判斷啟動(dòng). 這有利于防止隱性沖突.
4: 對(duì)SERVER數(shù)組進(jìn)行整理, 隱藏掉一些非安全段, 增加以HTTP_開(kāi)頭的一些數(shù)據(jù), 如內(nèi)存占用, 起始時(shí)間, 當(dāng)前url地址, ip, get, post等等. 你只要打印出$_SERVER數(shù)組, 基本上許多數(shù)據(jù)就都有了, 并且它是超全局的.
<?php
# 基礎(chǔ)抬頭 其中第三項(xiàng)釋放的信息在瀏覽器debug時(shí)可見(jiàn).
header('Content-language: zh');
header('Content-type: text/html; charset=utf-8');
header('X-Powered-By: PHP/-'.phpversion());
# 設(shè)置php文件永遠(yuǎn)不緩存. 可以在后面進(jìn)行疊加影響的.
header('Pragma: no-cache');
header('Cache-Control: private',false); // required for certain browsers
header('Cache-Control: no-cache, no-store, max-age=0, must-revalidate');
header('Expires: '.gmdate('D, d M Y H:i:s') . ' GMT');
header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
# 設(shè)置一個(gè)結(jié)束時(shí)調(diào)用的函數(shù). 請(qǐng)自行修改函數(shù)名.
function_exists('register_shutdown_function') && register_shutdown_function('ini_end');
# 設(shè)置執(zhí)行時(shí)間,內(nèi)部字符編碼.
set_time_limit($set_time = 3600);
mb_internal_encoding('utf-8');
# 核心設(shè)置
ini_sets('session.name','PHPSESSID');
ini_sets('max_execution_time',$set_time);
ini_sets('max_input_time',$set_time);
ini_sets('zend.ze1_compatibility_mode', false);
ini_sets('precision', 72);
ini_sets('session.gc_maxlifetime',3600); //設(shè)置垃圾回收最大生存時(shí)間
ini_sets('session.gc_probability',30); //和session.gc_divisor一起構(gòu)成清除垃圾的執(zhí)行幾率
ini_sets('session.gc_divisor',100);
ini_sets('date.timezone','UTC');
ini_sets('display_errors', 'Off');
error_reporting(E_ALL & ~E_NOTICE);
ini_http_server(); // this href
# 當(dāng)$_SESSION數(shù)組為空時(shí), 才初始化session.
if (!isset($_SESSION)) {
session_start();
}
# 當(dāng)gzip沒(méi)有自動(dòng)啟動(dòng)時(shí), 才啟動(dòng)gzip壓縮.
if (!ini_get('zlib.output_compression')){
!ob_start('ob_gzhandler')?ob_start():ob_start('ob_gzhandler');
}
# 判斷對(duì)引入字符的轉(zhuǎn)入判斷. 都設(shè)置為假.
if (version_compare(PHP_VERSION, '5.3.0', '<') && function_exists('set_magic_quotes_runtime')) {
set_magic_quotes_runtime(false);
}
# 對(duì)get post, cookie數(shù)組進(jìn)行反轉(zhuǎn)義工作, 以便讓其與php5.3+兼容. 得到的數(shù)據(jù)都是沒(méi)有轉(zhuǎn)義的.
if(( function_exists('get_magic_quotes_gpc') && get_magic_quotes_gpc())
|| ( ini_get('magic_quotes_sybase') && ( strtolower(ini_get('magic_quotes_sybase')) != 'off'))){
foreach($_GET as $k => $v) $_GET[$k] = stripslashes($v);
foreach($_POST as $k => $v) $_POST[$k] = stripslashes($v);
foreach($_COOKIE as $k => $v) $_COOKIE[$k] = stripslashes($v);
}
# 清空$_ENV數(shù)組, 釋放掉$_SERVER數(shù)組中幾個(gè)關(guān)鍵性數(shù)值.
unset($_ENV, $_SERVER['MIBDIRS'],$_SERVER['MYSQL_HOME'],$_SERVER['OPENSSL_CONF'],$_SERVER['PHP_PEAR_SYSCONF_DIR'],$_SERVER['PHPRC'],$_SERVER['SystemRoot'],$_SERVER['COMSPEC'],$_SERVER['PATHEXT'], $_SERVER['WINDIR'],$_SERVER['PATH']);
# 一些函數(shù).
function ini_end(){}
function ini_sets($key, $val){return @ini_set($key, $val);}
function ini_http_server(){
if (!$_SERVER['REQUEST_URI']) { // IIS 5 compatibility
$_SERVER['REQUEST_URI'] = $_SERVER['ORIG_PATH_INFO'];
}
if (!strpos($_SERVER['REQUEST_URI'], '?') && $_SERVER['QUERY_STRING'] != '') { // IIS 7 compatibility
$_SERVER['REQUEST_URI'] .= '?'.$_SERVER['QUERY_STRING'];
}
$_SERVER['REQUEST_URI'] = strtr($_SERVER['REQUEST_URI'], array('&&'=>'&'));
$HTTPS = $_SERVER['HTTPS'] && strcasecmp($_SERVER['HTTPS'], 'off');
$php_selfs = rawurlencode(dirname($_SERVER['SCRIPT_NAME']));
$php_selfs = strtr($php_selfs, array('%2F'=>'/','%5C'=>'/'));
$php_selfs = trim($php_selfs, '/');
if($php_selfs)
$_SERVER['REQUEST_URI'] = strtr($_SERVER['REQUEST_URI'], array($php_selfs.'/'=>''));
$httppre = (!$HTTPS)?'http':'https';
if($_SERVER['SERVER_PORT'] !== '80' && $_SERVER['SERVER_PORT'] !== '443'){
$host = trim($httppre.'://'.$_SERVER['HTTP_HOST'].':'.$_SERVER['SERVER_PORT'].'/'.$php_selfs,'/').'/';
}else{
$php_selfs && $php_selfs ='/'.$php_selfs;
$host = trim($httppre.'://'.$_SERVER['HTTP_HOST'].$php_selfs,'/').'/';
}
$files = trim($_SERVER['REQUEST_URI'], './');
$_SERVER['HTTP_URL'] = $host.$files;
$_SERVER['HTTP_PATH'] = $_SERVER['DOCUMENT_ROOT'].'/';
$_SERVER['HTTP_IP'] = max(getenv('SERVER_ADDR'),getenv('REMOTE_ADDR'),getenv('HTTP_X_FORWARDED_FOR'),getenv('HTTP_CLIENT_IP'));
$_SERVER['HTTP_TIME_FLOAT'] = microtime(true);
$_SERVER['HTTP_MEMORY_PEAK_USAGE'] = memory_get_peak_usage();
$_SERVER['HTTP_MEMORY_USAGE'] = memory_get_usage();
$_SERVER['HTTP_GET'] = $_GET;
$_SERVER['HTTP_POST'] = $_POST;
$_SERVER['HTTP_COOKIE'] = $_COOKIE;
}