<?php
function validate_type(&$variable = null, $types = "string", $fail = null){
//$variable is set
if(isset($variable) || $variable === null){
//Parse $Types
if(is_array($types)){ //Type 'Array'
if(sizeof($types) > 0){
//Check if the variable matches any given type
foreach($types as $type){
if(!is_string($type)){ //Type from 'String' or Type from 'Type'
$type = gettype($type);
}
if(strtolower(gettype($variable)) === strtolower($type)){
return $variable;
}
}
}else{
if(is_array($variable)){
return $variable;
}
}
}else{ //Type from 'String' or Type from 'Type'
//Check if the variable matches the given type
if(!is_string($types)){
$types = gettype($types);
}
if(strtolower(gettype($variable)) === strtolower($types)){
return $variable;
}
}
}
return $fail;
}