unset arry in php code example
Example 1: 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 2: remove array values php
array_splice(array, start, length, array)