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In php, after a header() jumps to another page, exit() must be added

高洛峰

Release： 2023-03-03 16:34:01

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In php, after a header() jumps to another page, exit() must be added

<?php
//如果答完题就跳转到结果页面
if($n==4){    
    header("Location:result/index.htm");
    exit();
}

$n = $n+1;
file_put_contents($_SERVER[&#39;DOCUMENT_ROOT&#39;].DIRECTORY_SEPARATOR."n.txt","00000000000000",LOCK_EX);
?>

Copy after login

If the header() jumps away without adding exit();, the following write statement will be executed (despite the jump to Another page, but the subsequent statements will still be executed).

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