Generating a javascript array in php with "Foreach" Loop - Stack Overflow

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So I'm generating a javascript array of objects in php with a for loop. My code looks somewhat like this:

<script type="text/javascript">

var items = [ 
<?php foreach($items as $item): ?>
     {
        "title" : "<?php echo $item->title ?>",
        "image" : "<?php echo $item->getImage()?>",
      }, 
 <?php  endforeach ?>
];

</script>

This code will not work, since I end up with an extra ma at the end of my javascript array. Is there an elegant way to deal with that ma that separates the javascript objects?

So I'm generating a javascript array of objects in php with a for loop. My code looks somewhat like this:

<script type="text/javascript">

var items = [ 
<?php foreach($items as $item): ?>
     {
        "title" : "<?php echo $item->title ?>",
        "image" : "<?php echo $item->getImage()?>",
      }, 
 <?php  endforeach ?>
];

</script>

This code will not work, since I end up with an extra ma at the end of my javascript array. Is there an elegant way to deal with that ma that separates the javascript objects?

• php
• javascript
• foreach

Share Follow edited May 1, 2012 at 9:44 alain.janinm 20.1k1111 gold badges6767 silver badges113113 bronze badges asked Jun 27, 2011 at 21:51 CamelBluesCamelBlues 3,77455 gold badges3232 silver badges3939 bronze badges

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3 Answers 3

Sorted by: Reset to default 10

You should use json_encode().

<?php
    $jsItems = array();
    foreach($items as $item) {
        $jsItems[] = array(
            'title' => $item->title,
            'image' => $item->getImage()
        );
    }
    echo 'var items = '.json_encode($jsItems).';';
?>

ThiefMaster's got it, but to expand on the answer:

$arr = array()
foreach ($items as $item) {
    $arr[] = array('title' => $item->title, 'image' => $item->getImage());
}

echo json_encode($arr);

For the future, in case you run into this type of looping problem again (regardless if it's json related), you can use a boolean to detect if a ma is needed:

<?php $firstTime = true ?>
<?php foreach($items as $item): ?>
    <?php 
    if (!$firstTime):
        echo ', ';
    else:
        $firstTime = false;
    endif;
    ?>
     {
        "title" : "<?php echo $item->title ?>",
        "image" : "<?php echo $item->getImage()?>",
      }
 <?php  endforeach ?>

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