Online PHP editor | rfc for aaDc9

@ 2021-05-27T13:50:15Z

<?php

function get_icon( $html, $url ) {
	// Grab the icon's link element.
	$pattern = '#<link\s[^>]*rel=(?:[\"\']??)\s*(?:icon|shortcut icon|icon shortcut)\s*(?:[\"\']??)[^>]*\/?>#isU';
	preg_match( $pattern, $html, $element );
	$element = ! empty( $element[0] ) && is_string( $element[0] ) ? trim( $element[0] ) : '';
	if ( empty( $element ) ) {
		return '';
	}

	// Get the icon's href value.
	$pattern = '#href=([\"\']??)([^\" >]*?)\\1[^>]*#isU';
	preg_match( $pattern, $element, $icon );
	$icon = ! empty( $icon[2] ) && is_string( $icon[2] ) ? trim( $icon[2] ) : '';
	if ( empty( $icon ) ) {
		return '';
	}

	// If the icon is a data URL, return it.
	$parsed_icon = parse_url( $icon );
	var_dump( $parsed_icon );	
	if ( 'data' === $parsed_icon['scheme'] ) {
		return $icon;
	}

	// Attempt to convert relative URLs to absolute.
	$parsed_url = parse_url( $url );
	$root_url   = $parsed_url['scheme'] . '://' . $parsed_url['host'] . '/';
	$icon       = WP_Http::make_absolute_url( $icon, $root_url );

	return $icon;
}

$html = array(
'<link href="data:image/png;base64,iVBORw0KGgo=" rel="icon" type="image/png" />',
'<link rel="icon" href="data:image/x-icon;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQEAYAAABPYyMiAAAABmJLR0T///////8JWPfcAAAACXBIWXMAAABIAAAASABGyWs+AAAAF0lEQVRIx2NgGAWjYBSMglEwCkbBSAcACBAAAeaR9cIAAAAASUVORK5CYII=" type="image/x-icon" />',
);


foreach ( $html as $icon_html ) {
    $icon = get_icon( $icon_html, '' );
    var_dump( $icon );
}

Output for git.master, git.master_jit, rfc.property-hooks: array(2) { ["scheme"]=> string(4) "data" ["path"]=> string(29) "image/png;base64,iVBORw0KGgo=" } string(34) "data:image/png;base64,iVBORw0KGgo=" array(2) { ["scheme"]=> string(4) "data" ["path"]=> string(180) "image/x-icon;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQEAYAAABPYyMiAAAABmJLR0T///////8JWPfcAAAACXBIWXMAAABIAAAASABGyWs+AAAAF0lEQVRIx2NgGAWjYBSMglEwCkbBSAcACBAAAeaR9cIAAAAASUVORK5CYII=" } string(185) "data:image/x-icon;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQEAYAAABPYyMiAAAABmJLR0T///////8JWPfcAAAACXBIWXMAAABIAAAASABGyWs+AAAAF0lEQVRIx2NgGAWjYBSMglEwCkbBSAcACBAAAeaR9cIAAAAASUVORK5CYII="

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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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