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<?php $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, $arr1[0])) { echo "got a match with strcmp"; } var_dump(poor_mans_strcmp('a', 'z')); var_dump(poor_mans_strcmp('q111f', 'fffff')); var_dump(poor_mans_strcmp($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) { # 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), '', $str4); } var_dump($str3, $str4); $result = 0; if ($str3 < $str4) { $result = -1; } if ($str3 > $str4) { if ($result == -1) {echo "Serious error detected, keep on trucking!\n";} $result = 1; } if ($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" string(2) "aa" string(2) "az" int(-1) string(6) "aq111f" string(6) "afffff" int(1) Warning: Array to string conversion in /in/hSETi on line 28 string(6) "aArray" string(20) "awoodbye wruel world" int(-1) string(6) "awello" string(20) "awoodbye wruel world" int(-1) string(20) "awoodbye wruel world" string(20) "awoodbye wruel world" MATCH: woodbye wruel world with woodbye wruel world int(0) string(6) "awello" string(11) "awello" int(1) string(6) "awello" string(7) "awello" int(-1) trying the binary safe node! string(6) "awello" string(6) "awello" MATCH: wello with wello int(0) string(6) "awello" string(6) "awello" 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" string(2) "aa" string(2) "az" int(-1) string(6) "aq111f" string(6) "afffff" int(1) Notice: Array to string conversion in /in/hSETi on line 28 string(6) "aArray" string(20) "awoodbye wruel world" int(-1) string(6) "awello" string(20) "awoodbye wruel world" int(-1) string(20) "awoodbye wruel world" string(20) "awoodbye wruel world" MATCH: woodbye wruel world with woodbye wruel world int(0) string(6) "awello" string(11) "awello" int(1) string(6) "awello" string(7) "awello" int(-1) trying the binary safe node! string(6) "awello" string(6) "awello" MATCH: wello with wello int(0) string(6) "awello" string(6) "awello" 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" string(2) "aa" string(2) "az" int(-1) string(6) "aq111f" string(6) "afffff" int(1) string(6) "aArray" string(20) "awoodbye wruel world" int(-1) string(6) "awello" string(20) "awoodbye wruel world" int(-1) string(20) "awoodbye wruel world" string(20) "awoodbye wruel world" MATCH: woodbye wruel world with woodbye wruel world int(0) string(6) "awello" string(11) "awello" int(1) string(6) "awello" string(7) "awello" int(-1) trying the binary safe node! string(6) "awello" string(6) "awello" MATCH: wello with wello int(0) string(6) "awello" string(6) "awello" MATCH: wello with wello int(0)
preferences:
306.38 ms | 404 KiB | 464 Q