3v4l.org

run code in 300+ PHP versions simultaneously
<?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 ($var3 == $arr1[0]) {echo "$var3 == $arr1[0]"; } var_dump(poor_mans_strcmp('a', 'z')); var_dump(poor_mans_strcmp('q111f', 'fffff')); var_dump(poor_mans_strcmp($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], $var4)); function poor_mans_strcmp($str1, $str2) { $result = 0; $str3 = 'a' . $str1; $str4 = 'a' . $str2; var_dump($str3, $str4); if ($str3 < $str4) { $result = -1; } if ($str3 > $str4) { $result = 1; } 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)
8.3.60.0110.00718.80
8.3.50.0130.00822.83
8.3.40.0040.01118.96
8.3.30.0150.00419.17
8.3.20.0070.00020.25
8.3.10.0030.00523.61
8.3.00.0060.00319.50
8.2.180.0120.00316.50
8.2.170.0120.00322.96
8.2.160.0080.00522.26
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00021.01
8.2.110.0030.00620.35
8.2.100.0090.00319.76
8.2.90.0030.00617.88
8.2.80.0050.00318.92
8.2.70.0060.00317.75
8.2.60.0030.00517.50
8.2.50.0030.00617.63
8.2.40.0050.00319.35
8.2.30.0040.00418.04
8.2.20.0040.00417.64
8.2.10.0040.00418.01
8.2.00.0000.00717.82
8.1.280.0110.00725.92
8.1.270.0050.00323.96
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0030.00623.70
8.1.230.0090.00320.78
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0000.00917.22
8.1.180.0030.00618.10
8.1.170.0030.00618.96
8.1.160.0040.00421.95
8.1.150.0050.00318.95
8.1.140.0000.00717.34
8.1.130.0030.00317.75
8.1.120.0050.00217.45
8.1.110.0040.00417.53
8.1.100.0040.00417.34
8.1.90.0000.00717.38
8.1.80.0040.00417.52
8.1.70.0000.00717.41
8.1.60.0030.00517.49
8.1.50.0030.00517.55
8.1.40.0040.00417.43
8.1.30.0080.00017.61
8.1.20.0040.00417.74
8.1.10.0050.00217.52
8.1.00.0030.00517.54
8.0.300.0040.00418.77
8.0.290.0060.00316.75
8.0.280.0020.00518.46
8.0.270.0000.00717.23
8.0.260.0030.00317.18
8.0.250.0030.00316.91
8.0.240.0030.00617.07
8.0.230.0030.00317.01
8.0.220.0000.00716.86
8.0.210.0030.00616.94
8.0.200.0030.00317.04
8.0.190.0040.00417.02
8.0.180.0030.00517.01
8.0.170.0040.00417.07
8.0.160.0000.00716.89
8.0.150.0040.00416.97
8.0.140.0000.00716.94
8.0.130.0030.00313.48
8.0.120.0030.00516.85
8.0.110.0040.00416.79
8.0.100.0070.00017.04
8.0.90.0000.00716.87
8.0.80.0070.01416.89
8.0.70.0050.00216.87
8.0.60.0040.00416.75
8.0.50.0040.00416.93
8.0.30.0080.01117.12
8.0.20.0120.00917.40
8.0.10.0000.00817.12
8.0.00.0070.01416.99
7.4.330.0020.00315.09
7.4.320.0060.00016.63
7.4.300.0030.00316.66
7.4.290.0030.00316.54
7.4.280.0000.00816.52
7.4.270.0030.00316.63
7.4.260.0030.00316.56
7.4.250.0000.00816.61
7.4.240.0060.00216.60
7.4.230.0000.00716.55
7.4.220.0040.01416.48
7.4.210.0100.00316.46
7.4.200.0000.00716.72
7.4.160.0100.00716.66
7.4.150.0120.00617.40
7.4.140.0080.01017.86
7.4.130.0040.01316.61
7.4.120.0100.00816.57
7.4.110.0120.00616.64
7.4.100.0070.01116.46
7.4.90.0090.00916.43
7.4.80.0100.01319.39
7.4.70.0110.00716.64
7.4.60.0110.00616.34
7.4.50.0040.00416.58
7.4.40.0080.00816.44
7.4.30.0110.00616.60
7.4.00.0060.00614.86
7.3.330.0000.00613.41
7.3.320.0000.00613.45
7.3.310.0070.00016.44
7.3.300.0000.00616.32
7.3.290.0120.00616.46
7.3.280.0080.01116.39
7.3.270.0180.00717.40
7.3.260.0170.00416.72
7.3.250.0110.00816.55
7.3.240.0100.00716.65
7.3.230.0100.00716.66
7.3.210.0140.00416.57
7.3.200.0030.01319.39
7.3.190.0070.01016.43
7.3.180.0030.01316.52
7.3.170.0140.00916.44
7.3.160.0060.01216.45
7.3.10.0110.01116.17
7.3.00.0080.01616.66
7.2.330.0150.00616.81
7.2.320.0030.01416.58
7.2.310.0030.01416.55
7.2.300.0030.01316.70
7.2.290.0130.00416.66
7.2.130.0160.00316.55
7.2.120.0190.00016.86
7.2.110.0130.00616.76
7.2.100.0160.00716.69
7.2.90.0110.00416.77
7.2.80.0110.00716.73
7.2.70.0140.00716.69
7.2.60.0100.00316.63
7.2.50.0080.00816.94
7.2.40.0090.00616.77
7.2.30.0070.00717.11
7.2.20.0110.01116.66
7.2.10.0070.01016.68
7.2.00.0080.00918.30
7.1.250.0100.01015.71
7.1.200.0000.01315.68
7.1.100.0280.01017.94
7.1.70.0000.00817.23
7.1.60.0070.01419.46
7.1.50.0070.01417.03
7.1.00.0100.07022.48
7.0.200.0080.00016.68
7.0.140.0100.06322.21
7.0.60.0030.04020.07
7.0.50.0070.03717.93
7.0.40.0170.07720.10
7.0.30.0270.05020.23
7.0.20.0200.03720.21
7.0.10.0070.08720.07
7.0.00.0070.09020.09
5.6.280.0030.07721.09
5.6.210.0000.04320.60
5.6.200.0030.09018.29
5.6.190.0030.05320.42
5.6.180.0400.07020.61
5.6.170.0330.05720.50
5.6.160.0070.04020.62
5.6.150.0030.05718.28
5.6.140.0000.04318.15
5.6.130.0070.04318.14
5.6.120.0030.04321.04
5.6.110.0030.09020.86
5.6.100.0030.04720.90
5.6.90.0030.08321.00
5.6.80.0100.06720.37
5.5.350.0200.08320.42
5.5.340.0030.03717.98
5.5.330.0030.04720.57
5.5.320.0270.03720.31
5.5.310.0470.07020.42
5.5.300.0170.07318.00
5.5.290.0070.04317.97
5.5.280.0370.05320.91
5.5.270.0070.04020.83
5.5.260.0030.08720.88
5.5.250.0030.04020.56
5.5.240.0030.07020.16
5.4.450.0030.06019.20
5.4.440.0230.04719.40
5.4.430.0170.04319.39
5.4.420.0070.04719.41
5.4.410.0030.04719.14
5.4.400.0100.04319.15
5.4.390.0230.04319.08
5.4.380.0400.06018.51
5.4.370.0270.07318.68
5.4.360.0230.06318.51
5.4.350.0270.05718.80
5.4.340.0330.05018.63
5.4.320.0060.04312.51
5.4.310.0060.03812.50
5.4.300.0060.03612.51
5.4.290.0020.04212.51
5.4.280.0050.03612.41
5.4.270.0060.03612.41
5.4.260.0060.03812.41
5.4.250.0060.04912.41
5.4.240.0070.04912.41
5.4.230.0090.05012.40
5.4.220.0070.03912.39
5.4.210.0050.03712.40
5.4.200.0070.03712.40
5.4.190.0040.03912.40
5.4.180.0050.03712.39
5.4.170.0120.03112.40
5.4.160.0050.03612.39
5.4.150.0050.03712.39
5.4.140.0030.04112.07
5.4.130.0060.04012.07
5.4.120.0040.03912.02
5.4.110.0050.03812.02
5.4.100.0080.03512.02
5.4.90.0070.03712.02
5.4.80.0070.03612.02
5.4.70.0060.03512.02
5.4.60.0050.03612.02
5.4.50.0040.03712.01
5.4.40.0040.03612.00
5.4.30.0070.03512.00
5.4.20.0080.03412.00
5.4.10.0060.03412.00
5.4.00.0040.03811.49
5.3.290.0070.03812.80
5.3.280.0080.04112.71
5.3.270.0050.04112.73
5.3.260.0050.04012.72
5.3.250.0070.04012.72
5.3.240.0040.03912.72
5.3.230.0090.03712.70
5.3.220.0100.03712.68
5.3.210.0060.04112.68
5.3.200.0080.03612.68
5.3.190.0040.05112.67
5.3.180.0080.03912.67
5.3.170.0090.03512.67
5.3.160.0100.03412.67
5.3.150.0090.03512.68
5.3.140.0090.03912.66
5.3.130.0060.04612.66
5.3.120.0040.04612.66
5.3.110.0070.04012.66
5.3.100.0070.04012.13
5.3.90.0050.03712.11
5.3.80.0060.04112.10
5.3.70.0070.03612.10
5.3.60.0110.03212.09
5.3.50.0060.03712.04
5.3.40.0070.03712.04
5.3.30.0040.03712.00
5.3.20.0060.03511.78
5.3.10.0050.03811.74
5.3.00.0050.03711.73
5.2.170.0090.0269.23
5.2.160.0050.0299.23
5.2.150.0040.0329.23
5.2.140.0060.0299.23
5.2.130.0050.0299.19
5.2.120.0050.0299.19
5.2.110.0050.0299.20
5.2.100.0040.0299.18
5.2.90.0040.0339.19
5.2.80.0050.0399.18
5.2.70.0070.0419.18
5.2.60.0070.0389.14
5.2.50.0110.0439.11
5.2.40.0120.0419.08
5.2.30.0060.0399.06
5.2.20.0070.0369.04
5.2.10.0080.0268.95
5.2.00.0040.0308.82
5.1.60.0060.0278.11
5.1.50.0050.0278.10
5.1.40.0040.0338.08
5.1.30.0040.0308.43
5.1.20.0080.0358.45
5.1.10.0050.0308.18
5.1.00.0060.0238.17
5.0.50.0070.0186.65
5.0.40.0030.0206.52
5.0.30.0030.0326.34
5.0.20.0050.0186.29
5.0.10.0030.0206.28
5.0.00.0070.0356.27
4.4.90.0040.0214.78
4.4.80.0020.0224.75
4.4.70.0040.0204.75
4.4.60.0000.0194.76
4.4.50.0000.0254.77
4.4.40.0030.0274.71
4.4.30.0020.0224.76
4.4.20.0040.0154.84
4.4.10.0040.0224.84
4.4.00.0040.0304.76
4.3.110.0060.0224.67
4.3.100.0070.0174.66
4.3.90.0050.0144.63
4.3.80.0020.0264.58
4.3.70.0050.0134.63
4.3.60.0010.0174.63
4.3.50.0050.0184.62
4.3.40.0050.0294.54
4.3.30.0040.0203.32
4.3.20.0030.0263.30
4.3.10.0080.0253.27
4.3.00.0000.02018.23

preferences:
51.29 ms | 401 KiB | 5 Q