if($api_response["success"] === true) { header("Location: https://google.com"); exit; } else { // print_r($api_response); $msg = "Some Error Occured!"; header("Location: ". $_SERVER['HTTP_REFERER']); // echo $msg; }在上面的代碼中，如果為 true，則代碼將完美運(yùn)行并按預(yù)期重定向。但如果情況不正確，我想顯示錯誤index.php<?php if(isset($msg) && $msg != ''){ echo $msg;}?>當(dāng)條件為假時，我沒有得到 $msg 變量的值。
1 回答
慕哥6287543
TA貢獻(xiàn)1831條經(jīng)驗(yàn) 獲得超10個贊
發(fā)送$msg標(biāo)頭
if($api_response["success"] === true) {
header("Location: https://google.com");
exit;
} else {
$msg = "Some Error Occured!";
header("Location: ".$_SERVER['HTTP_REFERER']."?msg=".$msg);
}
然后$msg像這樣讀你的
if(isset($_GET['msg'])){
print_r($_GET['msg']);
}
在你的情況下，你需要使用會話來保持私密，如下所示
if($api_response["success"] === true) {
header("Location: https://google.com");
exit;
} else {
$msg = "Some Error Occured!";
session_start();
$_SESSION['msg'] = $msg;
header("Location: ". $_SERVER['HTTP_REFERER']);
exit();
}
//and read like this
<?php
session_start();
if(isset($_SESSION['msg'])){
echo $_SESSION['msg'];
unset($_SESSION['msg']); // remove it now we have used it
}
?>
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