How Can I Remove Array Elements While Iterating with a Foreach Loop in PHP?

Removing Array Elements Within Foreach Loops

When iterating through an array using a foreach loop, it can be necessary to remove elements that meet a specific condition. One approach involves obtaining the key corresponding to each element, allowing for targeted deletion.

To delete an element containing a particular value, the foreach loop can be modified to include the key as an additional variable. This is achieved by using the => operator in the loop declaration. For example:

foreach ($display_related_tags as $key => $tag_name) {
    if($tag_name == $found_tag['name']) {
        unset($display_related_tags[$key]);
    }
}

Here, the key corresponding to the element is stored in the $key variable. The unset() function is then used to remove the element with the matching key from the $display_related_tags array. This effectively deletes the element from the array.

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