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Is there a function out there to make sure that any given array conforms to a particular structure? What I mean is that is has particular key names, perhaps particular types for values, and whatever nested structure.
Right now I have a place where I want to make sure that the array getting past has certain keys, a couple holding a certain data type, and one sub-array with particular key names. I've done a lot of run-around because I was passing malformed arrays to it, and finally I'm at the point where I have a bunch of
if ( ! isset($arr['key1']) ) { .... }
if ( ! isset($arr['key2']) ) { .... }
if ( ! isset($arr['key3']) ) { .... }
I would have saved a lot of time and consternation if I could have checked that the array conformed to a particular structure beforehand. Ideally something like
$arrModel = array(
'key1' => NULL ,
'key2' => int ,
'key3' => array(
'key1' => NULL ,
'key2' => NULL ,
),
);
if ( ! validate_array( $arrModel, $arrCandidate ) ) { ... }
So, the question I'm asking is, does this already exists, or do I write this myself?
368
Luckily, Laravel provides a simple way to validate arrays and nested array input with the use of dot notation and the * character. The * character replaces the iteration number of the element in the array. It's also pretty useful when we have more complex nesting going on.
The is_array() function checks whether a variable is an array or not. This function returns true (1) if the variable is an array, otherwise it returns false/nothing.
In JavaScript, we can check if a variable is an array by using 3 methods, using the isArray method, using the instanceof operator and using checking the constructor type if it matches an Array object. The Array. isArray() method checks whether the passed variable is an Array object.
Convert array to JSON:
http://us.php.net/manual/en/function.json-encode.php
Then check against a JSON Schema:
http://json-schema.org/
http://jsonschemaphpv.sourceforge.net/
151
It doesn't exist built in.
Maybe try something like (untested):
array_diff(array_merge_recursive($arrCandidate, $arrModel), $arrModel)
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