It's not immediately obvious, but there is a concise way to cast all elements of an array to a single type.  It's all possible with the array_walk()  function.    array_walk($test, function(&$value, $key){$value = (integer) $value;});    Used in an example it would look like this.    $sampleArray = array("one"=>"1", "two"=>"2", "three"=>3, "four"=>"4d");  var_dump($sampleArray);  array_walk($sampleArray, function(&$value, $key){$value = (integer) $value;}); //--------------------------------^ Required!             ^ //--------------------------------------------------------+ Type to cast to.  var_dump($sampleArray);      NOTE:   It's important to note that the ampersand is necessary.  See the note about references  on the second argument of the array_walk()  function documentation.  
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