php waits for a few seconds before jumping

php waits for a few seconds before jumping

1. PHP script controls the jump method, through Rewrite HTTP header information to jump

a) header refresh method:

<?php header("refresh:5;url=http://www.XXXXX.com"); print(&#39;正在加载，请稍等...<br>五秒后自动跳转。&#39;); ?>

b) header location method:

<?php 
sleep(3);
Header(“location:index.php”);
?>

two , Jump by outputting JavaScript

<?php 
sleep(3);
$url = "http://www.guanwei.org"; 
echo "<script language=&#39;javascript&#39; type=&#39;text/javascript&#39;>"; 
echo "window.location.href=&#39;$url&#39;"; 
echo "</script>"; 
?>

<?php 
$url = "http://www.guanwei.org"; 
echo "<script language=&#39;javascript&#39; type=&#39;text/javascript&#39;>";
echo "setTimeout(\"window.location.href=&#39;$url&#39;\", 3000)";
echo "</script>"; 
?>

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