javascript in php file code example

Example 1: javascript inside php

<?php
  FONCTION_PHP(){
  ?>
   <script>
    function fonctionJavaScript(){
  }
    </script>
<?php
	}
  ?>

Example 2: how to use php variable in javascript file

<script type="text/javascript">
// boolean outputs "" if false, "1" if true
var bool = "<?php echo $bool ?>"; 

// numeric value, both with and without quotes
var num = <?php echo $num ?>; // 7
var str_num = "<?php echo $num ?>"; // "7" (a string)

var str = "<?php echo $str ?>"; // "A string here"
</script>

Example 3: how to use php variable in javascript file

<?php
    $color = "Red";
?>
<script type="text/javascript">var color = "<?= $color ?>";</script>
<script type="text/javascript" src="file.js"></script>

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Php Example