非专勿扰!
一个页面内只有以下程序:
<?php
session_start();
$_SESSION['name']="店小二";
echo $_SESSION['name'];
?>
这个页面再没有其它东西了,运行的时候提示如下:
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at E:\xampplite\htdocs\vote\admin\login.php:1) in E:\xampplite\htdocs\vote\admin\login.php on line 2
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at E:\xampplite\htdocs\vote\admin\login.php:1) in E:\xampplite\htdocs\vote\admin\login.php on line 2
除了用error_reporting(0);还有什么办法不让提示错误。真正的不让警告。达到没有任何错误的目的。
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清除一下bom头。bom清除函数如下:
<?php
//remove the utf-8 boms
//by magicbug at gmail dot com
if (isset($_GET['dir'])){ //config the basedir
$basedir=$_GET['dir'];
}else{
$basedir = '.';
}
$auto = 1;
checkdir($basedir);
function checkdir($basedir){
if ($dh = opendir($basedir)) {
while (($file = readdir($dh)) !== false) {
if ($file != '.' && $file != '..'){
if (!is_dir($basedir."/".$file)) {
echo "filename: $basedir/$file ".checkBOM("$basedir/$file")." <br>";
}else{
$dirname = $basedir."/".$file;
checkdir($dirname);
}
}
}
closedir($dh);
}
}
function checkBOM ($filename) {
global $auto;
$contents = file_get_contents($filename);
$charset[1] = substr($contents, 0, 1);
$charset[2] = substr($contents, 1, 1);
$charset[3] = substr($contents, 2, 1);
if (ord($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191) {
if ($auto == 1) {
$rest = substr($contents, 3);
rewrite ($filename, $rest);
return ("<font color=red>BOM found, automatically removed.</font>");
} else {
return ("<font color=red>BOM found.</font>");
}
}
else return ("BOM Not Found.");
}
function rewrite ($filename, $data) {
$filenum = fopen($filename, "w");
flock($filenum, LOCK_EX);
fwrite($filenum, $data);
fclose($filenum);
}
?>