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Editorial Team
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Asked: 2026-05-26T15:50:41+00:00

Below is my code where the php array $keys assigned to a JS array

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Below is my code where the php array $keys assigned to a JS array var keysArr,
But the value display on the alert box is not correct.

Thus, there is something wrong on assign Php array to Js array.

Can anyone help me? Thanks in advance!

<?php
$keys = array(1, 2, 3, 4);
?>
<html>
    <head>
    <script type="text/javascript">
        var keysArr = <?php print $keys?>;
        for (var i = 0; i < keysArr.length; ++i){

                    alert(keysArr[i]);

        }
    </script>
    </head>
    <body>
    </body>
</html>
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1 Answer

  1. Editorial Team

    Try this

    <?php
$keys = array(1, 2, 3, 4);
?>
<html>
    <head>
    <script type="text/javascript">
        var keysArr = Array(<?php echo implode(',',$keys);?>);
        for (var i = 0; i < keysArr.length; ++i){

                    alert(keysArr[i]);

        }
    </script>
    </head>
    <body>
    </body>
</html>

    whith print you’re just showing Array, and not proper array code for js. Look inside the HTML you generate.

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