3v4l.org

run code in 300+ PHP versions simultaneously
<?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; }

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0070.01416.88
8.3.50.0110.00722.70
8.3.40.0100.01018.82
8.3.30.0090.01219.18
8.3.20.0080.00020.33
8.3.10.0040.00423.65
8.3.00.0050.00319.38
8.2.180.0090.00616.63
8.2.170.0070.00722.96
8.2.160.0150.00018.95
8.2.150.0170.00324.18
8.2.140.0130.00624.66
8.2.130.0100.00726.16
8.2.120.0060.00320.96
8.2.110.0000.00920.55
8.2.100.0110.00018.22
8.2.90.0040.00419.21
8.2.80.0000.00817.97
8.2.70.0050.00317.75
8.2.60.0040.00417.93
8.2.50.0030.00618.07
8.2.40.0040.00418.28
8.2.30.0000.00818.23
8.2.20.0000.00717.70
8.2.10.0080.00018.27
8.2.00.0050.00317.80
8.1.280.0100.00725.92
8.1.270.0140.00723.87
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0100.00022.05
8.1.230.0070.00419.00
8.1.220.0080.00017.77
8.1.210.0050.00318.77
8.1.200.0030.00717.35
8.1.190.0000.00817.25
8.1.180.0060.00318.10
8.1.170.0040.00418.46
8.1.160.0070.00022.08
8.1.150.0030.00518.84
8.1.140.0050.00217.52
8.1.130.0000.00717.88
8.1.120.0000.00717.58
8.1.110.0020.00517.36
8.1.100.0000.00717.39
8.1.90.0040.00417.39
8.1.80.0030.00417.41
8.1.70.0000.00717.38
8.1.60.0070.00417.59
8.1.50.0030.00617.55
8.1.40.0040.00417.50
8.1.30.0030.00517.61
8.1.20.0060.00317.75
8.1.10.0030.00617.57
8.1.00.0000.00817.47
8.0.300.0080.00018.77
8.0.290.0000.00716.88
8.0.280.0000.00718.52
8.0.270.0000.00817.24
8.0.260.0030.00317.34
8.0.250.0000.00717.03
8.0.240.0000.00717.07
8.0.230.0000.00717.02
8.0.220.0000.00717.04
8.0.210.0040.00416.97
8.0.200.0030.00316.95
8.0.190.0000.00717.05
8.0.180.0040.00417.02
8.0.170.0000.00817.04
8.0.160.0080.00016.96
8.0.150.0040.00416.93
8.0.140.0070.00016.85
8.0.130.0090.00013.41
8.0.120.0080.00016.96
8.0.110.0000.00817.01
8.0.100.0000.00716.89
8.0.90.0050.00216.99
8.0.80.0100.00717.04
8.0.70.0040.00416.87
8.0.60.0080.00016.98
8.0.50.0070.00016.90
8.0.30.0080.01317.17
8.0.20.0120.00917.40
8.0.10.0000.00716.97
8.0.00.0110.01016.68
7.4.330.0000.00515.00
7.4.320.0000.00716.54
7.4.300.0030.00316.49
7.4.290.0030.00316.72
7.4.280.0000.00816.68
7.4.270.0030.00316.66
7.4.260.0030.00316.67
7.4.250.0070.00016.44
7.4.240.0050.00216.56
7.4.230.0030.00416.66
7.4.220.0060.01216.56
7.4.210.0100.01016.49
7.4.200.0000.00716.66
7.4.160.0100.01016.41
7.4.150.0140.00817.40
7.4.140.0090.01117.86
7.4.130.0090.00916.59
7.4.120.0050.01116.59
7.4.110.0120.00616.32
7.4.100.0070.01116.40
7.4.90.0090.00916.73
7.4.80.0120.00616.66
7.4.70.0060.01216.64
7.4.60.0090.00916.38
7.4.50.0080.00516.45
7.4.40.0070.01016.22
7.4.30.0160.00016.09
7.4.20.0110.00816.32
7.4.10.0060.01216.34
7.4.00.0100.00716.02
7.3.330.0050.00213.46
7.3.320.0020.00213.43
7.3.310.0030.00316.36
7.3.300.0000.00716.37
7.3.290.0070.01416.43
7.3.280.0100.01116.46
7.3.270.0090.00917.40
7.3.260.0190.00616.81
7.3.250.0080.00916.55
7.3.240.0160.00416.53
7.3.230.0120.00416.63
7.3.210.0090.01316.51
7.3.200.0120.01019.39
7.3.190.0070.01716.43
7.3.180.0100.00916.25
7.3.170.0100.00616.29
7.3.160.0060.01116.36
7.3.150.0070.01316.29
7.3.140.0060.01016.45
7.3.130.0100.00616.26
7.3.120.0000.01716.26
7.3.110.0000.01816.21
7.3.100.0080.00816.29
7.3.90.0100.00516.14
7.3.80.0160.00016.40
7.3.70.0090.00916.22
7.3.60.0110.00516.26
7.3.50.0100.00716.20
7.3.40.0070.01016.29
7.3.30.0040.01316.36
7.3.20.0160.01616.25
7.3.10.0080.00716.58
7.3.00.0090.01016.60
7.2.330.0130.00416.75
7.2.320.0090.00916.82
7.2.310.0060.01216.54
7.2.300.0090.00916.59
7.2.290.0090.00916.43
7.2.280.0090.00916.54
7.2.270.0090.00816.43
7.2.260.0030.01516.48
7.2.250.0030.01516.80
7.2.240.0090.00916.50
7.2.230.0030.01616.46
7.2.220.0130.00416.45
7.2.210.0090.00916.56
7.2.200.0060.01016.55
7.2.190.0110.00616.21
7.2.180.0140.00316.32
7.2.170.0070.01016.43
7.2.160.0110.00716.25
7.2.150.0060.01216.56
7.2.140.0040.01516.60
7.2.130.0040.01016.71
7.2.120.0070.00716.76
7.2.110.0080.00916.81
7.2.100.0080.01116.68
7.2.90.0090.00916.78
7.2.80.0130.00816.66
7.2.70.0100.00816.79
7.2.60.0080.01016.84
7.2.50.0040.01416.65
7.2.40.0050.01116.88
7.2.30.0130.00516.77
7.2.20.0090.00916.65
7.2.10.0100.00816.89
7.2.00.0070.00916.81
7.1.330.0070.01015.57
7.1.320.0080.00915.48
7.1.310.0030.01315.30
7.1.300.0030.01315.34
7.1.290.0120.00615.38
7.1.280.0070.01015.49
7.1.270.0060.01215.46
7.1.260.0130.01215.35
7.1.250.0090.00815.55
7.1.240.0100.00715.54
7.1.230.0090.00915.11
7.1.220.0080.01615.23
7.1.210.0130.00715.33
7.1.200.0100.00915.31
7.1.190.0250.00315.37
7.1.180.0070.01015.31
7.1.170.0150.00315.33
7.1.160.0090.01215.38
7.1.150.0130.00915.35
7.1.140.0120.00615.37
7.1.130.0030.01415.47
7.1.120.0100.00915.32
7.1.110.0070.01215.40
7.1.100.0110.01115.52
7.1.90.0090.00915.25
7.1.80.0080.01115.29
7.1.70.0080.00816.23
7.1.60.0150.00817.45
7.1.50.0110.01116.30
7.1.40.0070.01015.23
7.1.30.0150.00915.39
7.1.20.0130.01015.45
7.1.10.0090.01315.51
7.1.00.0090.04018.88
7.0.330.0160.00614.92
7.0.320.0160.00814.95
7.0.310.0090.01215.11
7.0.300.0100.01014.91
7.0.290.0150.00615.18
7.0.280.0140.00715.10
7.0.270.0070.01115.04
7.0.260.0190.00414.88
7.0.250.0180.00015.04
7.0.240.0090.00615.11
7.0.230.0060.01515.05
7.0.220.0080.00815.07
7.0.210.0110.00714.95
7.0.200.0080.00715.71
7.0.190.0070.01014.97
7.0.180.0030.01315.00
7.0.170.0080.01214.98
7.0.160.0080.01214.88
7.0.150.0140.00315.07
7.0.140.0100.04018.55
7.0.130.0130.00715.02
7.0.120.0110.00615.10
7.0.110.0130.00514.84
7.0.100.0140.00614.86
7.0.90.0140.00414.98
7.0.80.0150.00615.25
7.0.70.0180.00614.96
7.0.60.0100.04217.51
7.0.50.0080.04816.45
7.0.40.0100.02417.63
7.0.30.0190.02917.59
7.0.20.0170.02817.54
7.0.10.0100.04717.61
7.0.00.0100.03917.55
5.6.400.0100.01315.95
5.6.390.0060.02015.57
5.6.380.0070.01415.74
5.6.370.0150.00315.76
5.6.360.0100.01015.83
5.6.350.0060.01415.91
5.6.340.0100.01015.58
5.6.330.0110.00815.69
5.6.320.0170.00315.88
5.6.310.0060.01515.71
5.6.300.0130.01015.77
5.6.290.0200.00415.62
5.6.280.0130.00715.71
5.6.270.0070.01115.73
5.6.260.0070.01416.03
5.6.250.0100.01015.79
5.6.240.0120.00815.68
5.6.230.0070.01415.71
5.6.220.0150.00515.68
5.6.210.0090.04118.25
5.6.200.0090.04416.96
5.6.190.0090.02518.25
5.6.180.0190.04318.09
5.6.170.0150.03618.03
5.6.160.0110.04418.23
5.6.150.0110.04016.99
5.6.140.0060.03916.97
5.6.130.0090.03017.01
5.6.120.0110.02718.41
5.6.110.0110.03618.33
5.6.100.0120.04318.44
5.6.90.0110.04418.37
5.6.80.0090.02318.00
5.6.70.2140.02218.05
5.6.60.0170.00915.65
5.6.50.0130.00715.73
5.6.40.0120.00915.74
5.6.30.0100.00715.84
5.6.20.0070.01515.75
5.6.10.0070.01315.77
5.6.00.0070.01115.73
5.5.380.0060.01515.62
5.5.370.0100.01115.68
5.5.360.0040.01615.78
5.5.350.0110.05118.13
5.5.340.0040.03916.75
5.5.330.0130.04318.18
5.5.320.0090.03618.04
5.5.310.0090.02917.93
5.5.300.0120.03816.96
5.5.290.0090.02416.76
5.5.280.0100.04518.21
5.5.270.0060.02818.20
5.5.260.0130.03318.14
5.5.250.0090.02718.19
5.5.240.0130.04417.98
5.5.230.0120.00815.54
5.5.220.0060.01515.77
5.5.210.0130.01015.70
5.5.200.0060.01415.80
5.5.190.0070.01115.45
5.5.180.0130.00815.80
5.5.170.0150.00415.68
5.5.160.0060.01915.50
5.5.150.0100.01015.85
5.5.140.0100.01315.69
5.5.130.0100.01015.76
5.5.120.0070.01315.64
5.5.110.0060.01315.32
5.5.100.0190.00715.55
5.5.90.0170.00715.82
5.5.80.0110.01515.73
5.5.70.0100.01615.77
5.5.60.0120.00915.84
5.5.50.0170.00415.73
5.5.40.0040.02015.72
5.5.30.0110.00915.74
5.5.20.0060.01315.40
5.5.10.0070.01315.83
5.5.00.0160.00315.40
5.4.450.0150.02316.03
5.4.440.0190.02316.06
5.4.430.0160.02715.96
5.4.420.0190.03015.96
5.4.410.0180.04015.99
5.4.400.0480.01715.85
5.4.390.0040.03015.79
5.4.380.0240.03015.55
5.4.370.0370.03615.67
5.4.360.0210.03415.62
5.4.350.0230.02815.57
5.4.340.0170.03015.58
5.4.330.0100.00612.50
5.4.320.0080.03212.51
5.4.310.0050.03112.54
5.4.300.0050.02812.54
5.4.290.0100.01912.50
5.4.280.0050.02412.57
5.4.270.0100.02012.48
5.4.260.0100.02012.42
5.4.250.0080.02312.37
5.4.240.0120.02012.51
5.4.230.0080.02212.46
5.4.220.0080.02012.54
5.4.210.0060.03112.48
5.4.200.0070.02512.43
5.4.190.0050.02312.49
5.4.180.0080.02812.47
5.4.170.0100.02812.45
5.4.160.0080.02812.46
5.4.150.0090.02612.45
5.4.140.0020.03412.28
5.4.130.0060.02212.27
5.4.120.0110.02012.31
5.4.110.0030.02512.35
5.4.100.0070.02312.32
5.4.90.0060.02412.30
5.4.80.0030.02512.32
5.4.70.0110.02112.36
5.4.60.0080.02512.33
5.4.50.0080.02712.22
5.4.40.0060.02712.27
5.4.30.0130.02112.36
5.4.20.0080.02712.34
5.4.10.0070.02512.31
5.4.00.0060.02212.01
5.3.290.0090.02512.99
5.3.280.0070.02312.88
5.3.270.0060.02512.91
5.3.260.0060.02312.94
5.3.250.0070.03012.93
5.3.240.0050.03112.89
5.3.230.0060.02612.95
5.3.220.0060.02512.90
5.3.210.0020.02812.82
5.3.200.0090.01912.97
5.3.190.0070.02212.88
5.3.180.0060.02312.93
5.3.170.0040.02412.99
5.3.160.0050.02312.99
5.3.150.0070.02112.99
5.3.140.0090.03012.95
5.3.130.0070.02512.88
5.3.120.0030.02712.88
5.3.110.0040.02612.89
5.3.100.0030.02612.63
5.3.90.0060.02412.62
5.3.80.0070.02812.62
5.3.70.0110.02012.69
5.3.60.0100.01812.74
5.3.50.0080.02012.53
5.3.40.0070.02112.68
5.3.30.0050.02312.61
5.3.20.0060.02112.40
5.3.10.0050.02412.36
5.3.00.0100.02012.31
5.2.170.0070.01810.72
5.2.160.0060.01810.65
5.2.150.0050.01910.66
5.2.140.0080.01610.61
5.2.130.0060.02110.59
5.2.120.0050.01910.74
5.2.110.0060.02010.64
5.2.100.0050.01810.58
5.2.90.0050.01810.71
5.2.80.0050.01910.54
5.2.70.0040.02010.56
5.2.60.0070.01710.56
5.2.50.0060.01910.48
5.2.40.0050.01810.58
5.2.30.0030.02110.53
5.2.20.0060.01910.43
5.2.10.0060.01610.41
5.2.00.0030.01910.31
5.1.60.0040.0169.52
5.1.50.0040.0189.70
5.1.40.0060.0219.57
5.1.30.0070.0219.81
5.1.20.0030.0249.79
5.1.10.0050.0219.73
5.1.00.0070.0209.70
5.0.50.0040.0138.43
5.0.40.0030.0148.34
5.0.30.0050.0248.24
5.0.20.0050.0158.22
5.0.10.0020.0148.22
5.0.00.0030.0208.21
4.4.90.0040.0087.46
4.4.80.0030.0107.45
4.4.70.0020.0117.45
4.4.60.0040.0087.45
4.4.50.0020.0097.46
4.4.40.0030.0147.42
4.4.30.0020.0097.45
4.4.20.0040.0097.49
4.4.10.0040.0087.49
4.4.00.0040.0137.45
4.3.110.0020.0117.41
4.3.100.0030.0097.40
4.3.90.0050.0077.39
4.3.80.0040.0137.37
4.3.70.0020.0107.38
4.3.60.0060.0077.38
4.3.50.0020.0117.38
4.3.40.0020.0157.34
4.3.30.0020.0096.74
4.3.20.0010.0126.73
4.3.10.0020.0116.71
4.3.00.0060.00814.19

preferences:
42.14 ms | 401 KiB | 5 Q