unset value from array php code example

Example 1: php delete element by value

$colors = array("blue","green","red");

//delete element in array by value "green"
if (($key = array_search("green", $colors)) !== false) {
    unset($colors[$key]);
}

Example 2: php remove specific element from array

if (($key = array_search('strawberry', $array)) !== false) {
    unset($array[$key]);
}

Example 3: php unset array key

unset($dataArray['key']);

Example 4: php delete element from array

//Delete array items with unset(no re-index) or array_splice(re-index)
$colors = array("red","blue","green");                             
unset($colors[1]);//remove second element, do not re-index array

$colors = array("red","blue","green");
array_splice($colors, 1, 1); //remove second element, re-index array

Example 5: php remove element from array by value

// matrix array
foreach($appsList as $key => $app) {
            if($app["app_status"] !== "approved") {
                // remove orange apps
                unset($appsList[$key]);
            }
}

Example 6: remove array values php

array_splice(array, start, length, array)