gistfile1.inc

<?php

$test_array = array(
	'<a href="/test">' => 
	'<a href="/test">',
	
	'<a href="path/relative">' => 
	'<a href="basepath/path/relative">',
	
	'<a href="path/relative ">' => 
	'<a href="basepath/path/relative ">',
	
	'<a href="path/ relative">' => 
	'<a href="basepath/path/ relative">',
	
	'<a href=" path/ relative ">' => 
	'<a href="basepath/ path/relative ">',

	'<a href=" ">' => 
	'<a href="basepath/ ">',
	
	'<a href=>' => 
	'<a href="basepath/">',
	
	'<a href="test" href="test">' => 
	'<a href="basepath/test" href="basepath/test">',
	
	'<tag href="/test">' => 
	'<tag href="/test">',
	
	'<a href="http://test.com/test">' => 
	'<a href="http://test.com/test">',
	
	'<a href="proto://x.y/test#a">' => 
	'<a href="proto://x.y/test#a">',
	
	'<a href="/test#a">' => 
	'<a href="/test#a">',
	
	'<a href="test">' => 
	'<a href="basepath/test">',
	
	'<a href="test">' => 
	'<a href="basepath/test">',
	
	'<a href=test>' => 
	'<a href="basepath/test">',
	
	'<a href=test test>' => 
	'<a href="basepath/test" test>',
	
	'<a href=#test>' => 
	'<a href=#test>',
	
	'<a href=\'#test\'>' => 
	'<a href=\'#test\'>',
	
	'<a href="#test">' => 
	'<a href="#test">',
	
	'<a href="#test/some/a/path">' => 
	'<a href="#test/some/a/path">',
	
	'<a href=\'path#test\'>' => 
	'<a href="basepath/path#test">',
	
	'<a href="test" >' => 
	'<a href="basepath/test" >',
	
	'<href="test">' => 
	'<href="test">',
	
	'< href="test">' => 
	'< href="test">',
	
	'<a something="a" href="test" something2="b">' => 
	'<a something="a" href="basepath/test" something2="b">',
	
	'<a something="a" href="test" something2="b">href="something"<a something="a" href="test" something2="b">' => 
	'<a something="a" href="basepath/test" something2="b">href="something"<a something="a" href="basepath/test" something2="b">',
);

$failed_test_count = 0;
$failed_test_array = array();
$i = 1;
foreach( $test_array as $input => $correct_output ) {
	$output = preg_replace(
		"/(<.+?href=[\"']+)([^#]{1}.*?>)/",
		'$1' . "basepath/" . '$2',
		$input
	);
	
	if( $output !== $correct_output ) {
		$failed_test_count++;
		$failed_test_array[] = $i;
		print
			"\n".
			"Failed test:\n".
			"\t"."Input:  \t".$input."\n".
			"\t"."Output: \t".$output."\n".
			"\t"."Correct: \t".$correct_output."\n";
	}
	$i++;
}

print
	"\n".
	"Failed Test Count: $failed_test_count\n".
	"Failed Test Array: ".implode(",",$failed_test_array)."\n";

?>