3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "foobar"; var_dump($str[-7]);

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)
8.3.70.0150.00016.50
8.3.60.0120.00318.29
8.3.50.0070.00718.32
8.3.40.0060.00918.59
8.3.30.0140.00418.71
8.3.20.0080.00018.87
8.3.10.0000.00819.18
8.3.00.0070.00023.66
8.2.190.0180.00016.63
8.2.180.0110.00416.63
8.2.170.0070.00722.96
8.2.160.0070.00720.46
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0000.00719.64
8.2.120.0060.00326.35
8.2.110.0030.00619.27
8.2.100.0070.00517.78
8.2.90.0000.00819.11
8.2.80.0040.00417.97
8.2.70.0050.00318.03
8.2.60.0030.00617.93
8.2.50.0080.00018.10
8.2.40.0040.00419.48
8.2.30.0040.00419.42
8.2.20.0040.00417.93
8.2.10.0040.00419.84
8.2.00.0000.00719.23
8.1.280.0120.00325.92
8.1.270.0030.00522.02
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0060.00322.67
8.1.230.0030.01017.89
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0060.00317.11
8.1.190.0090.00017.23
8.1.180.0050.00218.10
8.1.170.0040.00418.58
8.1.160.0040.00418.93
8.1.150.0040.00418.86
8.1.140.0000.00717.61
8.1.130.0000.00718.91
8.1.120.0030.00517.43
8.1.110.0040.00417.38
8.1.100.0000.00817.29
8.1.90.0070.00017.40
8.1.80.0070.00017.28
8.1.70.0030.00517.41
8.1.60.0050.00317.44
8.1.50.0030.00517.37
8.1.40.0050.00317.48
8.1.30.0040.00417.56
8.1.20.0020.00517.67
8.1.10.0040.00417.46
8.1.00.0040.00417.57
8.0.300.0040.00418.77
8.0.290.0070.00316.75
8.0.280.0050.00218.24
8.0.270.0000.00817.05
8.0.260.0000.00617.10
8.0.250.0030.00316.95
8.0.240.0070.00016.88
8.0.230.0000.00716.84
8.0.220.0030.00516.77
8.0.210.0000.00716.79
8.0.200.0070.00416.85
8.0.190.0080.00016.90
8.0.180.0080.00016.92
8.0.170.0000.00816.95
8.0.160.0000.00716.88
8.0.150.0000.00716.89
8.0.140.0070.00016.88
8.0.130.0050.00013.27
8.0.120.0000.00816.75
8.0.110.0000.00816.66
8.0.100.0000.00716.95
8.0.90.0000.00716.90
8.0.80.0080.01116.83
8.0.70.0000.00816.77
8.0.60.0050.00216.94
8.0.50.0000.00716.87
8.0.30.0100.00917.13
8.0.20.0100.00817.40
8.0.10.0000.00717.12
8.0.00.0070.01316.76
7.4.330.0060.00015.55
7.4.320.0000.00716.36
7.4.300.0030.00316.41
7.4.290.0050.00216.50
7.4.280.0040.00416.56
7.4.270.0070.00416.42
7.4.260.0000.00616.52
7.4.250.0070.00016.34
7.4.240.0030.00316.34
7.4.230.0070.00016.53
7.4.220.0060.00316.60
7.4.210.0050.00816.47
7.4.200.0000.00716.35
7.4.160.0050.01016.45
7.4.140.0100.01217.86
7.4.130.0040.01116.35
7.4.120.0090.00916.46
7.4.110.0140.00316.61
7.4.100.0120.00316.29
7.4.90.0100.00716.38
7.4.80.0070.01119.39
7.4.70.0140.01016.37
7.4.60.0030.01316.43
7.4.50.0070.00516.63
7.4.40.0060.01016.27
7.4.00.0090.00815.04
7.3.330.0020.00213.09
7.3.320.0000.00612.93
7.3.310.0030.00616.18
7.3.300.0030.00316.16
7.3.290.0060.00016.14
7.3.280.0100.00716.29
7.3.260.0080.01016.30
7.3.240.0090.00816.37
7.3.230.0070.01016.24
7.3.210.0030.01716.31
7.3.200.0060.00916.30
7.3.190.0070.01416.65
7.3.180.0070.01016.16
7.3.170.0060.01316.19
7.3.160.0120.00316.21
7.3.120.0070.01114.91
7.3.110.0100.00714.55
7.3.100.0110.00414.73
7.3.90.0120.00414.71
7.3.80.0090.00614.43
7.3.70.0080.00414.66
7.3.60.0040.00814.57
7.3.50.0040.00814.46
7.3.40.0070.00714.65
7.3.30.0100.00714.78
7.3.20.0040.00816.67
7.3.10.0090.00616.48
7.3.00.0070.00716.55
7.2.330.0110.00716.27
7.2.320.0070.01016.36
7.2.310.0090.00916.43
7.2.300.0090.00916.52
7.2.290.0110.00616.50
7.2.250.0070.00714.77
7.2.240.0070.01014.97
7.2.230.0040.00815.10
7.2.220.0070.00414.95
7.2.210.0070.01014.97
7.2.200.0130.00314.98
7.2.190.0050.01014.77
7.2.180.0030.00914.64
7.2.170.0120.00415.05
7.2.110.0300.00316.48
7.2.80.0000.01416.64
7.2.60.0060.00716.59
7.2.50.0090.00316.54
7.2.40.0070.00716.77
7.2.30.0000.01316.74
7.2.20.0100.00316.80
7.2.10.0070.00716.59
7.2.00.0070.00616.75
7.1.330.0080.00315.72
7.1.320.0060.00615.38
7.1.310.0070.00715.55
7.1.300.0030.01415.82
7.1.290.0080.00615.61
7.1.280.0040.01115.77
7.1.270.0030.01215.97
7.1.260.0090.00615.83
7.1.200.0070.00715.85
7.1.170.0060.00615.80
7.1.160.0030.01115.45
7.1.150.0060.00615.54
7.1.140.0040.00815.80
7.1.130.0030.00915.48
7.1.120.0060.00615.83
7.1.110.0100.00615.60
7.1.100.0030.01315.91
7.1.90.0030.01015.79
7.1.80.0070.00715.89
7.1.70.0090.00315.57
7.1.60.0190.01533.66
7.1.50.0270.00733.45
7.1.40.0200.01333.55
7.1.30.0290.00433.62
7.1.20.0210.01233.60
7.1.10.0030.00915.48
7.1.00.0070.00615.62

preferences:
54.14 ms | 401 KiB | 5 Q