Callback to convert URL match to HTML A element.

Description

This function was backported from 2.5.0 to 2.3.2. Regex callback for make_clickable() .

Parameters

$matchesarrayrequired

Single Regex Match.

Return

Source

function _make_web_ftp_clickable_cb( $matches ) {
	$ret  = '';
	$dest = $matches[2];
	$dest = 'http://' . $dest;

	// Removed trailing [.,;:)] from URL.
	$last_char = substr( $dest, -1 );
	if ( in_array( $last_char, array( '.', ',', ';', ':', ')' ), true ) === true ) {
		$ret  = $last_char;
		$dest = substr( $dest, 0, strlen( $dest ) - 1 );
	}

	$dest = esc_url( $dest );
	if ( empty( $dest ) ) {
		return $matches[0];
	}

	$rel_attr = _make_clickable_rel_attr( $dest );

	return $matches[1] . "<a href=\"{$dest}\"{$rel_attr}>{$dest}</a>{$ret}";
}

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