How to pass PHP array to javascript [duplicate]

Question

I want to send an array via $.ajax to a PHP Script.

<?php
$arrid=array("a","b","c","d","e","f");
?>

<script src="jquery.js"></script>
<script>
    var request = $.ajax({
      url: 'paidmail.php',
      dataType: 'json',
      data: 'id=<?php print_r($arrid); ?>',
      success: function(data) {
        console.log(data);
      }
    });
</script>

paidmail.php just echo out the id. But my Console always throws this Exception:

unterminated string literal

How is it possible to send an array via $.ajax to another PHP script?

Marc B · Accepted Answer · 2011-02-18 21:04:27Z

2

print_r() returns a string, which will contain Javascript meta characters, particularly the single quote ', which will cause syntax errors. Instead of print_r, use json_encode(), which will transform a PHP array into a syntactically valid Javascript data structure.

  data: 'id=<?php echo json_encode($arrid); ?>',

answered Feb 18, 2011 at 21:04

Marc B

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Comments

gen_Eric · Accepted Answer · 2011-02-18 21:06:58Z

1

Replace:

data: 'id=<?php print_r($arrid); ?>'

with:

data: {id: <?php echo json_encode($arrid);?>}

answered Feb 18, 2011 at 21:06

gen_Eric

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Comments

Oliver · Accepted Answer · 2011-02-18 21:08:00Z

0

Marc, don't you also want to utf-8 encode?

data: 'id=<?php echo json_encode(array_map('utf8_encode' , $arrid)); ?>',

And you should probably also use POST instead of GET:

type: "POST"

answered Feb 18, 2011 at 21:08

Oliver

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