faustwp / includes / utilities / functions.php

functions.php in Faust.js 1.0.2, at includes/utilities/functions.php

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1	<?php
2	/**
3	* Various utility functions used through the Faust plugin.
4	*
5	* @package FaustWP
6	*/
7
8	namespace WPE\FaustWP\Utilities;
9
10	if ( ! defined( 'ABSPATH' ) ) {
11	exit;
12	}
13
14	/**
15	* Converts string to camelCase. Added to ensure that fields are compliant with the GraphQL spec.
16	*
17	* @param string $str The string to be converted to camelCase.
18	* @param array $preserved_chars The characters to preserve.
19	*
20	* @credit http://www.mendoweb.be/blog/php-convert-string-to-camelcase-string/
21	*
22	* @return string camelCase'd string
23	*/
24	function camelcase( $str, $preserved_chars = array() ) {
25	/* Convert non-alpha and non-numeric characters to spaces. */
26	$str = preg_replace( '/[^a-z0-9' . implode( '', $preserved_chars ) . ']+/i', ' ', $str );
27	$str = trim( $str );
28
29	/* Uppercase the first character of each word. */
30	$str = ucwords( $str );
31	$str = str_replace( ' ', '', $str );
32
33	return lcfirst( $str );
34	}
35