关联数组循环

Question

I had this i array and i try to loop trough.

Output of:<?php print_r($this);?>

[text] => a:2:{i:0;a:2:{s:5:"value";s:2:"de";s:5:"label";s:70:"<img src="assets/images/e/de-02d3d6ee.jpg"  width="40" height="28" alt="">";}i:1;a:2:{s:5:"value";s:2:"en";s:5:"label";s:70:"<img src="assets/images/7/en-c5c09767.jpg"  width="40" height="28" alt="">";}}

I tried:

<?php $str ='de'; ?>

    <?php foreach ($this->text as $key => $item):?>
        <?php if ($key == $str):?>
            <span class="firstelement hide-on-mobile"><?php echo $item; ?></span>
        <?php endif;?>
    <?php endforeach;?>

I got no output.

Answer 1

First of all, your array seems to be serialized. To access it with code, you would need to unserialize() it first. (In case you did not do this already)

$labels = unserialize($this->text);

The problem you have then is, that you misinterpreted the structure of your array. Your array is built like this:

$labels = [
    0 => [
        'value' => 'de',
        'label' => '<img ... />'
    ],
    1 => [
        'value' => 'en',
        'label' => '<img ... />'
    ]
]

As you can see, it is an array that contains arrays itself. (multidimensional array) When the array gets iterated in your for loop, $key gets assigned the outer keys, so 0 and 1. What you want instead, is to access the inner keys. This can only be done by accessing them directly:

for($labels as $value) {
    if ($value['value'] === $str) {
        ?>
        <span class="firstelement hide-on-mobile"><?= $value['label'] ?></span>
        <?php
    }
}

As you can see, the for loop neither accesses the outer keys anymore, because they are not relevant, as well as accessing the inner array's fields with $value['value'] and $value['label'] directly.