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Simple Loop into array


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Hi All

 

I hope someone can help. I know it's easy but for some reason, I simply can't get my head around it.

 

I need to collect values from a form:

$gallery_1 = $_POST['item_meta'][124];
$gallery_2 = $_POST['item_meta'][125];

I have up to 10 of the above.

 

I'm then using:

$meta_value=$gallery_1.','.$gallery_2....;
And so on to $gallery_10

However, this isn't efficient I'm sure and what happens if the 2nd or 8th - 10th input is empty

 

Can I put this into a foreach loop to build up an array of values?

 

Thanks

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You could loop through $_POST['item_meta']. Here's a quick example:

<?php
//IF FORM WAS SUBMITTED
if($_SERVER['REQUEST_METHOD'] == 'POST') {
    foreach($_POST['item_meta'] as $currIndex => $currValue) {
        print "<div>$currIndex = $currValue</div>";
    }
}
?>
<form method="post">
    <input type="text" name="item_meta[124]" />
    <input type="text" name="item_meta[125]" />
    <input type="text" name="item_meta[128]" />
    <input type="text" name="item_meta[132]" />
    <input type="submit" name="submit" value="Save" />
</form>
  • Solution

Supposing you have, this (where you said some could be empty)

$_POST['item_meta'][124] = 'aaa';
$_POST['item_meta'][125] = 'bbb';
$_POST['item_meta'][126] = 'ccc';
$_POST['item_meta'][127] = 'ddd';
$_POST['item_meta'][128] = 'eee';
$_POST['item_meta'][129] = '';
$_POST['item_meta'][130] = 'fff';
$_POST['item_meta'][131] = '';
$_POST['item_meta'][132] = '';
$_POST['item_meta'][133] = 'ggg';

then to get the $meta_value, all you need is

$meta_value = join(',', array_filter($_POST['item_meta']));

to check

echo $meta_value;         //-->  aaa,bbb,ccc,ddd,eee,fff,ggg
  • Like 1
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