3v4l.org

run code in 300+ PHP versions simultaneously
<?php $len = strlen(pack('h*', '000001')); var_dump($len);

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)
8.3.60.0140.00716.63
8.3.50.0060.01117.20
8.3.40.0070.00718.57
8.3.30.0110.00318.67
8.3.20.0150.00018.70
8.3.10.0040.00420.47
8.3.00.0030.00617.38
8.2.180.0110.00716.38
8.2.170.0090.00622.96
8.2.160.0030.01022.25
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00419.83
8.2.110.0100.00020.91
8.2.100.0060.00617.78
8.2.90.0070.00019.27
8.2.80.0000.00718.04
8.2.70.0090.00017.50
8.2.60.0080.00017.92
8.2.50.0050.00318.07
8.2.40.0000.00819.79
8.2.30.0040.00417.91
8.2.20.0070.00017.46
8.2.10.0000.00917.68
8.2.00.0040.00417.54
8.1.280.0070.00725.92
8.1.270.0050.00223.99
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0100.00022.53
8.1.230.0070.00420.89
8.1.220.0040.00417.74
8.1.210.0030.00520.57
8.1.200.0000.00917.10
8.1.190.0050.00317.28
8.1.180.0000.00818.10
8.1.170.0080.00018.62
8.1.160.0000.00718.73
8.1.150.0070.00018.65
8.1.140.0050.00317.34
8.1.130.0030.00317.86
8.1.120.0000.00717.39
8.1.110.0000.00717.39
8.1.100.0000.00817.27
8.1.90.0040.00417.32
8.1.80.0050.00217.45
8.1.70.0000.00717.41
8.1.60.0040.00417.49
8.1.50.0000.00717.41
8.1.40.0040.00417.47
8.1.30.0040.00417.46
8.1.20.0090.00017.62
8.1.10.0040.00417.38
8.1.00.0050.00517.36
8.0.300.0030.00519.85
8.0.290.0040.00416.75
8.0.280.0030.00318.48
8.0.270.0100.00717.15
8.0.260.0060.00016.63
8.0.250.0030.00316.91
8.0.240.0030.00616.94
8.0.230.0040.00416.77
8.0.220.0000.00716.88
8.0.210.0070.00016.73
8.0.200.0060.00016.85
8.0.190.0000.00716.89
8.0.180.0040.00416.85
8.0.170.0060.00316.77
8.0.160.0050.00316.84
8.0.150.0040.00416.78
8.0.140.0040.00416.79
8.0.130.0030.00513.21
8.0.120.0030.00616.76
8.0.110.0050.00216.61
8.0.100.0000.00716.86
8.0.90.0020.00516.69
8.0.80.0100.00716.83
8.0.70.0030.00316.65
8.0.60.0040.00416.68
8.0.50.0050.00316.93
8.0.30.0100.00817.21
8.0.20.0110.01416.97
8.0.10.0030.00516.90
8.0.00.0090.00916.79
7.4.330.0000.00512.91
7.4.320.0000.00816.44
7.4.300.0000.00716.45
7.4.290.0030.00516.43
7.4.280.0030.00616.46
7.4.270.0030.00316.51
7.4.260.0030.00313.21
7.4.250.0050.00516.46
7.4.240.0040.00416.45
7.4.230.0000.00616.32
7.4.220.0070.01416.43
7.4.210.0080.00916.48
7.4.200.0050.00216.42
7.4.190.0030.00316.29
7.4.160.0060.00916.48
7.4.150.0170.00816.50
7.4.140.0100.00816.54
7.4.130.0080.01016.51
7.4.120.0130.00916.37
7.4.110.0030.01416.46
7.4.100.0110.00616.45
7.4.90.0070.01016.54
7.4.80.0150.00316.44
7.4.70.0110.00516.52
7.4.60.0100.00716.52
7.4.50.0040.00416.47
7.4.40.0040.01416.27
7.4.30.0090.00616.32
7.4.00.0120.00615.09
7.3.330.0000.00513.04
7.3.320.0030.00313.03
7.3.310.0040.00416.21
7.3.300.0040.00416.08
7.3.290.0090.00616.17
7.3.280.0080.00816.12
7.3.270.0090.01516.21
7.3.260.0090.00816.46
7.3.250.0080.01516.21
7.3.240.0060.01016.09
7.3.230.0090.00816.27
7.3.210.0140.00416.12
7.3.200.0080.00819.39
7.3.190.0130.00616.14
7.3.180.0140.00716.26
7.3.170.0040.01216.24
7.3.160.0110.01016.28
7.3.120.0060.00914.78
7.2.330.0080.01516.30
7.2.320.0100.01316.49
7.2.310.0120.01116.38
7.2.300.0110.00616.57
7.2.290.0040.01216.48
7.2.60.0150.00016.89
7.2.50.0090.00616.64
7.2.00.0090.00319.02
7.1.200.0000.00915.71
7.1.100.0000.01018.24
7.1.70.0070.00316.96
7.1.60.0160.00019.40
7.1.50.0100.01016.84
7.1.00.0030.04022.37
7.0.200.0040.00416.73
7.0.140.0030.07022.07
7.0.120.0030.07022.04
7.0.60.0170.06719.93
7.0.50.0000.09017.90
7.0.40.0030.08020.04
7.0.30.0270.07720.04
7.0.20.0330.06020.13
7.0.10.0230.04320.04
7.0.00.0000.04320.11
5.6.280.0070.07020.91
5.6.210.0070.08020.66
5.6.200.0070.08018.17
5.6.190.0000.08320.60
5.6.180.0070.08020.39
5.6.170.0370.07320.71
5.6.160.0070.09020.46
5.6.150.0000.04318.18
5.6.140.0070.07018.22
5.6.130.0170.06718.11
5.6.120.0100.04321.01
5.6.110.0030.05021.13
5.6.100.0100.07721.03
5.6.90.0070.04021.10
5.6.80.0030.07320.50
5.6.70.4530.03320.37
5.5.350.0200.06320.34
5.5.340.0100.06317.99
5.5.330.0030.04320.29
5.5.320.0370.04320.29
5.5.310.0370.07020.25
5.5.300.0100.07717.87
5.5.290.0100.03318.00
5.5.280.0100.08320.86
5.5.270.0030.07320.67
5.5.260.0270.05720.79
5.5.250.0130.03720.68
5.5.240.0030.08320.15
5.4.450.0200.04319.57
5.4.440.3900.03719.26
5.4.430.0170.07019.27
5.4.420.0030.06319.51
5.4.410.0100.05719.42
5.4.400.0170.05319.12
5.4.390.0170.04318.98
5.4.380.0200.05318.72
5.4.370.0030.04318.77
5.4.360.0100.03718.48
5.4.350.0080.03611.97
5.4.340.0070.03611.97
5.4.320.0090.03812.45
5.4.310.0040.04012.45
5.4.300.0050.04312.45
5.4.290.0050.04512.45
5.4.280.0060.04212.34
5.4.270.0070.03712.35
5.4.260.0070.04012.34
5.4.250.0080.04312.35
5.4.240.0080.04212.35
5.4.230.0080.04012.34
5.4.220.0070.04012.34
5.4.210.0060.03912.34
5.4.200.0060.04412.34
5.4.190.0080.04912.33
5.4.180.0070.04312.33
5.4.170.0070.03812.34
5.4.160.0030.04112.34
5.4.150.0070.03712.34
5.4.140.0070.03812.02
5.4.130.0080.03412.01
5.4.120.0070.04211.97
5.4.110.0070.04211.96
5.4.100.0110.04311.96
5.4.90.0070.04411.96
5.4.80.0060.04711.97
5.4.70.0060.04511.96
5.4.60.0060.04111.96
5.4.50.0060.04211.96
5.4.40.0080.03911.95
5.4.30.0060.04311.95
5.4.20.0080.04011.95
5.4.10.0060.04311.95
5.4.00.0050.04111.43
5.3.290.0040.05212.80
5.3.280.0080.04612.71
5.3.270.0080.04412.72
5.3.260.0090.03812.72
5.3.250.0060.04812.72
5.3.240.0080.05412.72
5.3.230.0080.04412.71
5.3.220.0080.04412.68
5.3.210.0080.04712.68
5.3.200.0110.04212.68
5.3.190.0080.04812.68
5.3.180.0080.04412.67
5.3.170.0060.04812.67
5.3.160.0110.04412.67
5.3.150.0090.04412.67
5.3.140.0060.04212.66
5.3.130.0060.04512.66
5.3.120.0090.04412.66
5.3.110.0090.04312.66
5.3.100.0080.04112.12
5.3.90.0070.04112.08
5.3.80.0110.03812.08
5.3.70.0090.04012.08
5.3.60.0070.03912.06
5.3.50.0070.03812.00
5.3.40.0090.03812.00

preferences:
62.58 ms | 401 KiB | 5 Q