3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = 'array string access'; var_dump($test[0], isset($test[0]), $test === '');

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)
8.4.140.0110.00917.39
8.4.130.0120.00818.66
8.4.120.0150.00617.74
8.4.110.0080.01217.92
8.4.100.0090.01017.74
8.4.90.0120.00820.39
8.4.80.0130.00718.63
8.4.70.0140.00620.43
8.4.60.0100.00620.37
8.4.50.0090.01119.51
8.4.40.0060.00317.59
8.4.30.0080.00020.67
8.4.20.0070.00719.58
8.4.10.0060.00321.95
8.3.270.0110.00816.51
8.3.260.0070.01216.54
8.3.250.0130.00518.41
8.3.240.0130.00618.47
8.3.230.0110.00816.66
8.3.220.0130.00618.99
8.3.210.0070.00816.56
8.3.200.0040.00416.36
8.3.190.0080.01116.59
8.3.180.0100.00816.89
8.3.170.0070.01116.93
8.3.160.0160.00316.71
8.3.150.0060.01320.50
8.3.140.0050.00318.76
8.3.130.0050.00316.84
8.3.120.0080.00020.55
8.3.110.0030.00616.39
8.3.100.0070.00716.49
8.3.90.0090.00016.52
8.3.80.0040.00418.43
8.3.70.0110.00718.18
8.3.60.0120.00319.95
8.3.50.0100.00718.12
8.3.40.0070.00720.33
8.3.30.0070.00720.20
8.3.20.0030.00724.18
8.3.10.0040.00424.66
8.3.00.0040.00426.16
8.2.290.0100.00716.48
8.2.280.0120.00716.62
8.2.270.0140.00417.31
8.2.260.0090.00918.43
8.2.250.0070.00316.81
8.2.240.0040.00417.17
8.2.230.0000.00820.94
8.2.220.0030.00724.06
8.2.210.0070.01026.77
8.2.200.0070.00418.29
8.2.190.0150.00318.16
8.2.180.0110.01116.32
8.2.170.0140.00719.13
8.2.160.0070.00722.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0130.00426.16
8.2.120.0080.00022.00
8.2.110.0070.00419.45
8.2.100.0080.00417.91
8.2.90.0110.00018.22
8.2.80.0030.00519.27
8.2.70.0060.01279.33
8.2.60.0150.00579.33
8.2.50.0120.00679.33
8.2.40.0130.00379.33
8.2.30.0140.00479.33
8.2.20.0130.00379.33
8.2.10.0160.00079.33
8.2.00.0160.00079.33
8.1.330.0090.00616.04
8.1.320.0100.00917.79
8.1.310.0090.00618.41
8.1.300.0050.00316.23
8.1.290.0060.00318.88
8.1.280.0090.00625.92
8.1.270.0050.00324.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00722.18
8.1.230.0110.00320.97
8.1.220.0040.00417.74
8.1.210.0070.00218.77
8.1.200.0090.00979.33
8.1.190.0160.00379.33
8.1.180.0160.00079.33
8.1.170.0180.00079.33
8.1.160.0120.00679.33
8.1.150.0180.00079.33
8.1.140.0120.00879.33
8.1.130.0120.00679.33
8.1.120.0130.00479.33
8.1.110.0100.01079.33
8.1.100.0080.00879.33
8.1.90.0040.01279.33
8.1.80.0000.01679.33
8.1.70.0140.00279.33
8.1.60.0150.00379.33
8.1.50.0140.00379.33
8.1.40.0180.00079.33
8.1.30.0120.00679.33
8.1.20.0140.00579.33
8.1.10.0160.00379.33
8.1.00.0190.00079.33
8.0.300.0050.00320.07
8.0.290.0120.00479.33
8.0.280.0150.00379.33
8.0.270.0120.00479.33
8.0.260.0050.01179.33
8.0.250.0050.01179.33
8.0.240.0150.00079.33
8.0.230.0110.00679.33
8.0.220.0100.00679.33
8.0.210.0140.00579.33
8.0.200.0100.00579.33
8.0.190.0090.00779.33
8.0.180.0160.00079.33
8.0.170.0030.01379.33
8.0.160.0090.00679.33
8.0.150.0100.00579.33
8.0.140.0110.00779.33
8.0.130.0130.00479.33
8.0.120.0170.00079.33
8.0.110.0170.00079.33
8.0.100.0130.00479.33
8.0.90.0120.00479.33
8.0.80.0160.00079.33
8.0.70.0130.00479.33
8.0.60.0130.00379.33
8.0.50.0080.00879.33
8.0.30.0080.00879.33
8.0.20.0160.00079.33
8.0.10.0090.00679.33

preferences:
28.54 ms | 403 KiB | 5 Q