Online PHP editor | output for 5W5ib

@ 2017-05-23T16:07:52Z

<?php

// old and new strings
$old = "Foo \r\nFoo\r\nBar\r\nQux";
$new = "Foo\nBar\nBaz";

// convert all line endings to the same type
$old = str_replace(["\r\n", "\r"], "\n", $old);
$new = str_replace(["\r\n", "\r"], "\n", $new);

// seperate into lines
$old_lines = explode("\n", $old);
$new_lines = explode("\n", $new);

// optional: remove whitespace so spaces don't trigger falsely
array_walk($old_lines, function(&$value) {
    $value = trim($value);
});
array_walk($new_lines, function(&$value) {
    $value = trim($value);
});

// figure out which one is longer
if (count($old_lines) >= count($new_lines)) {
	$primary = $old_lines;
	$secondary = $new_lines;
} else {
	$primary = $new_lines;
	$secondary = $old_lines;
}

// compare line by line
$results = [];
foreach ($primary as $key => $value) {
	if (key_exists($key, $secondary)) {
	    if ($primary[$key] == $secondary[$key]) {
		    $results[] = "MATCH";
	    } else {
	        $results[] = "DIFFERENT";
	    }
	} else {
		$results[] = "MISSING";
	}
}

var_dump($old_lines);
var_dump($new_lines);
var_dump($results);

Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: array(4) { [0]=> string(3) "Foo" [1]=> string(3) "Foo" [2]=> string(3) "Bar" [3]=> string(3) "Qux" } array(3) { [0]=> string(3) "Foo" [1]=> string(3) "Bar" [2]=> string(3) "Baz" } array(4) { [0]=> string(5) "MATCH" [1]=> string(9) "DIFFERENT" [2]=> string(9) "DIFFERENT" [3]=> string(7) "MISSING" }
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(4) { [0]=> string(3) "Foo" [1]=> string(3) "Foo" [2]=> string(3) "Bar" [3]=> string(3) "Qux" } array(3) { [0]=> string(3) "Foo" [1]=> string(3) "Bar" [2]=> string(3) "Baz" } array(4) { [0]=> string(5) "MATCH" [1]=> string(9) "DIFFERENT" [2]=> string(9) "DIFFERENT" [3]=> string(7) "MISSING" }

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