ACF-PHP File validator

validate-acf-php-files.php.sh

#!/usr/bin/env php
<?php

function acf_add_local_field_group($data) {
	foreach ( $data as $array_key => $array_value ) {
		if ( is_array($array_value) ) {
			acf_add_local_field_group( $array_value );
		}
		else {
			if ( 'key' === $array_key && false === strpos( $array_value, 'layout_' ) ) {
				ensure_key_unique( $array_value );
			}
		}
	}
}

function ensure_key_unique( $key ) {
	static $keys = [];
	if ( '***RESET***' === $key ) { 
		$keys = []; return; 
	}
	if ( in_array( $key, $keys ) ) {
		print "$key is already defined, please repair this file.\n";
	}
	$keys[] = $key;
}

function apply_filters( $filter_name, $value ) {
	return $value;
}

function add_filter() {
	// nop
}

function _x( $string ) {
	return $string;
}

$directory = $argv[1] ?? __DIR__;
foreach ( glob("$directory/group_*php") as $acf_file ) {
	print "Checking: $acf_file \n";
	include $acf_file;
	ensure_key_unique( '***RESET***' );
}