How to execute js method in php

php execute js method: first create the js code content; then pass "echo "7c6ecc2a75ade4ffa1f50134f6be3b0etest();2cacc6d41bbb37262a98f745aa00fbf0";" in PHP Just execute the js code.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

How does php execute the js method?

php calls the value in js

There is such a piece of code in the z.php page:

<script type="text/javascript" > var url="aaaa*"; </script> 
<? 
$key="<script type=text/javascript>document.write(url)</script>";
 echo $key; ?>

php calls the method (function) in js

<script type="text/javascript"> 
function test() {   
var t1=3;   
t1 = t1+2;   
alert(t1);   //return t1; } 
</script>
<?php 
echo "<script type=&#39;text/javascript&#39;>
test();
</script>"; 
?>

php contains js code

<?php
    echo   "
<script   language=javascript>
  function   test(){
    alert( &#39;hello &#39;);    
  }
</script> ";
 
?>
<input   type=button   value=click   onclick= &#39;test() &#39;>

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