Online PHP editor | rfc for RRqr1

@ 2022-09-04T22:54:47Z

<?php

function sanitize_html_class( $class, $fallback = '' ) {
	//Strip out any % encoded octets
	$sanitized = preg_replace( '|%[a-fA-F0-9][a-fA-F0-9]|', '', $class );

	//Limit to A-Z,a-z,0-9,_,-
	$sanitized = preg_replace( '/[^A-Za-z0-9_-]/', '', $sanitized );

	if ( '' == $sanitized )
		$sanitized = $fallback;

	/**
	 * Filter a sanitized HTML class string.
	 *
	 * @since 2.8.0
	 *
	 * @param string $sanitized The sanitized HTML class.
	 * @param string $class     HTML class before sanitization.
	 * @param string $fallback  The fallback string.
	 */
	// N/A // return apply_filters( 'sanitize_html_class', $sanitized, $class, $fallback );
	return $sanitized;
}
$class_name = '300"; onload="/* some JavaScript */';

var_dump( '<div class="' . sanitize_html_class( $class_name ) . '"></div>' );

var_dump( '<div class="' . $class_name . '"></div>' );

Output for git.master, git.master_jit, rfc.property-hooks: string(43) "<div class="300onloadsomeJavaScript"></div>" string(55) "<div class="300"; onload="/* some JavaScript */"></div>"

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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