3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "\xff\xff\xff\x00"; $b = "\xff\xff\x01\x00"; echo PHP_VERSION. "\n"; echo bin2hex(current(unpack("a4", $a & $b)));

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)
8.3.40.0070.00718.71
8.3.30.0110.00318.38
8.3.20.0040.00418.65
8.3.10.0000.00721.06
8.3.00.0060.00321.60
8.2.170.0040.01122.96
8.2.160.0130.00020.39
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00021.18
8.2.110.0060.00321.07
8.2.100.0080.00317.91
8.2.90.0060.00317.63
8.2.80.0080.00018.00
8.2.70.0030.00618.05
8.2.60.0090.00017.93
8.2.50.0040.00418.10
8.2.40.0050.00322.30
8.2.30.0000.00719.36
8.2.20.0050.00317.59
8.2.10.0020.00517.55
8.2.00.0040.00417.77
8.1.270.0040.00423.99
8.1.260.0070.00726.35
8.1.250.0070.00028.09
8.1.240.0050.00322.48
8.1.230.0070.00422.82
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0050.00517.36
8.1.190.0070.00317.23
8.1.180.0030.00518.10
8.1.170.0090.00018.50
8.1.160.0000.00718.82
8.1.150.0070.00018.47
8.1.140.0000.00717.43
8.1.130.0030.00317.87
8.1.120.0050.00317.37
8.1.110.0000.00717.34
8.1.100.0040.00417.35
8.1.90.0040.00417.38
8.1.80.0000.00717.39
8.1.70.0000.00717.30
8.1.60.0030.00617.54
8.1.50.0040.00417.36
8.1.40.0040.00417.46
8.1.30.0000.00717.46
8.1.20.0030.00517.47
8.1.10.0040.00417.48
8.1.00.0080.00017.32
8.0.300.0070.00019.88
8.0.290.0030.00716.75
8.0.280.0040.00418.34
8.0.270.0080.00017.31
8.0.260.0030.00316.74
8.0.250.0000.00816.84
8.0.240.0050.00316.84
8.0.230.0060.00016.78
8.0.220.0000.00716.86
8.0.210.0050.00316.77
8.0.200.0030.00316.95
8.0.190.0030.00316.83
8.0.180.0030.00316.79
8.0.170.0030.00316.88
8.0.160.0070.00016.74
8.0.150.0030.00316.82
8.0.140.0070.00016.74
8.0.130.0030.00313.31
8.0.120.0000.00716.81
8.0.110.0000.00816.66
8.0.100.0000.00716.82
8.0.90.0070.00016.70
8.0.80.0130.00916.71
8.0.70.0030.00516.93
8.0.60.0030.00616.85
8.0.50.0080.00016.63
8.0.30.0080.01217.24
8.0.20.0230.01017.40
8.0.10.0000.00816.81
8.0.00.0030.01516.77
7.4.330.0000.00516.71
7.4.320.0000.00616.54
7.4.300.0070.00016.53
7.4.290.0040.00416.56
7.4.280.0050.00316.43
7.4.270.0030.00316.39
7.4.260.0000.00613.19
7.4.250.0040.00416.46
7.4.240.0000.00716.33
7.4.230.0020.00516.63
7.4.220.0100.01316.42
7.4.210.0060.00916.55
7.4.200.0000.00716.32
7.4.190.0040.00416.65
7.4.160.0110.00416.25
7.4.150.0160.00717.40
7.4.140.0100.00817.86
7.4.130.0150.00516.41
7.4.120.0090.00916.36
7.4.110.0070.01116.50
7.4.100.0060.01516.40
7.4.90.0150.00316.55
7.4.80.0070.01419.39
7.4.70.0130.00916.41
7.4.60.0070.01016.52
7.4.50.0000.00815.92
7.4.40.0090.00622.77
7.4.30.0080.00816.26
7.4.00.0120.00014.94
7.3.330.0000.00512.94
7.3.320.0050.00013.10
7.3.310.0000.00816.14
7.3.300.0070.00016.20
7.3.290.0120.00616.20
7.3.280.0090.00816.22
7.3.270.0070.01017.40
7.3.260.0130.01118.24
7.3.250.0100.00716.36
7.3.240.0040.01216.29
7.3.230.0130.00316.41
7.3.210.0110.00616.25
7.3.200.0090.00919.39
7.3.190.0140.00316.27
7.3.180.0090.00616.45
7.3.170.0130.00316.37
7.3.160.0030.01316.44
7.3.120.0030.00914.45
7.2.330.0090.00916.25
7.2.320.0090.00916.56
7.2.310.0130.00916.66
7.2.300.0060.01316.39
7.2.290.0040.02116.57
7.2.60.0090.00616.92
7.2.00.0080.00419.50
7.1.200.0030.01015.59
7.1.100.0030.00618.21
7.1.70.0040.00417.22
7.1.60.0070.01719.17
7.1.50.0110.01416.80
7.1.00.0070.03022.58
7.0.200.0110.00716.70
7.0.140.0070.07022.08
7.0.60.0170.07720.02
7.0.50.0100.05317.80
7.0.40.0100.08720.40
7.0.30.0330.08020.17
7.0.20.0170.04020.23
7.0.10.0070.08320.09
7.0.00.0100.08020.33
5.6.280.0070.07020.77
5.6.210.0170.07720.74
5.6.200.0100.07018.22
5.6.190.0030.09320.27
5.6.180.3770.04020.41
5.6.170.0200.04320.61
5.6.160.0000.04720.61
5.6.150.0100.08018.21
5.6.140.0100.06718.07
5.6.130.0070.07318.21
5.6.120.0100.04720.98
5.6.110.0070.08720.98
5.6.100.0130.07720.97
5.6.90.0100.07720.95
5.6.80.0030.04020.39
5.6.70.0130.07020.36
5.5.350.0100.08020.51
5.5.340.0070.08318.02
5.5.330.0100.05020.06
5.5.320.0270.07720.51
5.5.310.0300.07720.32
5.5.300.0030.04317.90
5.5.290.0070.05017.96
5.5.280.0000.08720.86
5.5.270.0170.06020.64
5.5.260.0070.05320.88
5.5.250.0070.04320.60
5.5.240.0300.07320.23
5.4.450.0270.03719.21
5.4.440.0170.04019.41
5.4.430.0230.05319.56
5.4.420.0170.07319.43
5.4.410.0230.03319.29
5.4.400.0230.03718.79
5.4.390.0170.03718.80
5.4.380.0130.04019.16
5.4.370.0300.05019.06
5.4.360.0370.04319.08
5.4.350.0230.03719.08
5.4.340.0300.05318.92
5.4.320.0230.06018.90
5.4.310.0400.06318.79
5.4.300.0330.06719.08
5.4.290.0270.05319.05
5.4.280.0370.06718.88
5.4.270.0230.04319.22
5.4.260.0300.04019.08
5.4.250.0270.03719.23
5.4.240.0430.06019.08
5.4.230.0300.08019.09
5.4.220.0270.05719.14
5.4.210.0270.05019.24
5.4.200.0230.03719.21
5.4.190.0200.04018.89
5.4.180.0270.03719.15
5.4.170.0270.05319.05
5.4.160.0270.05019.19
5.4.150.0230.07719.05
5.4.140.0370.06016.29
5.4.130.0370.06316.25
5.4.120.0300.07016.32
5.4.110.0370.05316.36
5.4.100.0300.05316.45
5.4.90.0230.06016.43
5.4.80.0370.06316.41
5.4.70.0370.05316.06
5.4.60.0370.06316.28
5.4.50.0230.07316.20
5.4.40.0230.05716.31
5.4.30.0200.04316.30
5.4.20.0330.05316.43
5.4.10.0200.05016.08
5.4.00.0330.06315.73
5.3.290.0230.07714.52
5.3.280.0330.07014.54
5.3.270.0370.03314.43
5.3.260.0370.06314.55
5.3.250.0370.06714.43
5.3.240.0200.04714.58
5.3.230.0400.06314.54
5.3.220.0230.08014.41
5.3.210.0370.06014.41
5.3.200.0330.06014.41
5.3.190.0300.07014.40
5.3.180.0230.05314.52
5.3.170.0330.05014.39
5.3.160.0270.06014.43
5.3.150.0330.07014.51
5.3.140.0330.07014.39
5.3.130.0300.06714.40
5.3.120.0230.05714.59
5.3.110.0230.05314.63
5.3.100.0270.07713.88
5.3.90.0300.04713.88
5.3.80.0300.06313.81
5.3.70.0270.07014.10
5.3.60.0270.04013.98
5.3.50.0330.06713.82
5.3.40.0270.04713.82
5.3.30.0270.04013.93
5.3.20.0300.04013.56
5.3.10.0400.03313.51
5.3.00.0270.06013.46
5.2.170.0130.05312.07
5.2.160.0300.03712.07
5.2.150.0230.06012.07
5.2.140.0170.06012.07
5.2.130.0230.05312.07
5.2.120.0270.02712.07
5.2.110.0230.03312.07
5.2.100.0230.05712.07
5.2.90.0230.04312.07
5.2.80.0270.03712.07
5.2.70.0170.03712.07
5.2.60.0230.05712.07
5.2.50.0300.05312.07
5.2.40.0130.03012.07
5.2.30.0200.02712.07
5.2.20.0130.03312.07
5.2.10.0200.02712.07
5.2.00.0230.03712.07
5.1.60.0170.03712.07
5.1.50.0230.05012.07
5.1.40.0230.04312.07
5.1.30.0270.04712.07
5.1.20.0230.05312.07
5.1.10.0200.05712.07
5.1.00.0100.04312.07
5.0.50.0130.02312.07
5.0.40.0170.04012.07
5.0.30.0130.05312.07
5.0.20.0130.03012.07
5.0.10.0100.02012.07
5.0.00.0100.06712.07
4.4.90.0100.02312.07
4.4.80.0100.03312.07
4.4.70.0130.01712.07
4.4.60.0170.01312.07
4.4.50.0130.01712.07
4.4.40.0130.05312.07
4.4.30.0100.03312.07
4.4.20.0030.03012.07
4.4.10.0100.02712.07
4.4.00.0100.03012.07
4.3.110.0070.03712.07
4.3.100.0130.03012.07
4.3.90.0100.03312.07
4.3.80.0100.03012.07
4.3.70.0070.02012.07
4.3.60.0130.03312.07
4.3.50.0100.03712.07
4.3.40.0100.05312.07
4.3.30.0030.02012.07
4.3.20.0030.02312.07
4.3.10.0070.02012.07
4.3.00.0070.02012.07

preferences:
45.74 ms | 400 KiB | 5 Q