Online PHP editor | output for dAg85

@ 2014-09-12T22:27:42Z

<?php

$debug = 0;

$arr1 []= 'wello';
$var2 = 'woodbye wruel world';
$var3 = pack("n*", 0x77, 0x32 + 0x33, 0x6c, 0x6e-2, 0x6f);
$var4 = pack('n*', 0x7765, 0x6c6c, 0x6f00);
echo "var3 = $var3";
var_dump($var4);
if ($var4 == $arr1[0]) {echo "$var3 == $arr1[0]"; }

if (! strcmp($var4, $arr1[0])) { echo "got a match with strcmp"; }
poor_mans_strcmp('a', 'z'); 
poor_mans_strcmp('q111f', 'fffff'); 
poor_mans_strcmp($arr1, $var2);
var_dump(poor_mans_strcmp($arr1[0], $var2)); 
var_dump(poor_mans_strcmp($var2, $var2));

var_dump(poor_mans_strcmp($arr1[0], $var3)); 
var_dump(poor_mans_strcmp($arr1[0], $var4)); 

echo "trying the binary safe node!\n"; 
var_dump(poor_mans_strcmp($arr1[0], $var3, 1)); 
var_dump(poor_mans_strcmp($arr1[0], $var4, 1)); 

function poor_mans_strcmp($str1, $str2, $binary_safe = 0)
{
	global $debug;
	# use old shell programming trick
	$str3 = 'a' . $str1;
	$str4 = 'a' . $str2;

	if ($binary_safe)
	{
		# strip null bytes to make it binary safe! 
		$str3 = str_replace(chr(0), '', $str3); 
		$str4 = str_replace(chr(0), '', $str4);
	}
	if ($debug) {var_dump($str3, $str4);}

	$result = 0;
	if ($str3 < $str4) { echo "$str1 is LESSTHAN $str2\n"; $result = -1; }
	if ($str3 > $str4) { if ($result == -1) {echo "Serious error detected, keep on trucking!\n";} $result = 1; echo "$str1 is GREATERTHAN $str2\n"; }   
	if ($result == 0) {echo "MATCH: $str1 with $str2\n";}
	return $result;
}

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: var3 = wellostring(6) "wello" a is LESSTHAN z q111f is GREATERTHAN fffff Warning: Array to string conversion in /in/dAg85 on line 31 Warning: Array to string conversion in /in/dAg85 on line 43 Array is LESSTHAN woodbye wruel world wello is LESSTHAN woodbye wruel world int(-1) MATCH: woodbye wruel world with woodbye wruel world int(0) wello is GREATERTHAN wello int(1) wello is LESSTHAN wello int(-1) trying the binary safe node! MATCH: wello with wello int(0) MATCH: wello with wello int(0)
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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 - 7.3.31, 7.4.0 - 7.4.33: var3 = wellostring(6) "wello" a is LESSTHAN z q111f is GREATERTHAN fffff Notice: Array to string conversion in /in/dAg85 on line 31 Notice: Array to string conversion in /in/dAg85 on line 43 Array is LESSTHAN woodbye wruel world wello is LESSTHAN woodbye wruel world int(-1) MATCH: woodbye wruel world with woodbye wruel world int(0) wello is GREATERTHAN wello int(1) wello is LESSTHAN wello int(-1) trying the binary safe node! MATCH: wello with wello int(0) MATCH: wello with wello int(0)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 7.3.32 - 7.3.33: var3 = wellostring(6) "wello" a is LESSTHAN z q111f is GREATERTHAN fffff Array is LESSTHAN woodbye wruel world wello is LESSTHAN woodbye wruel world int(-1) MATCH: woodbye wruel world with woodbye wruel world int(0) wello is GREATERTHAN wello int(1) wello is LESSTHAN wello int(-1) trying the binary safe node! MATCH: wello with wello int(0) MATCH: wello with wello int(0)

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