3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array( array(), ); $rec = &$a[0]; var_dump(str_replace("2", "3", $a));

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)
8.3.60.0140.00018.56
8.3.50.0130.00716.36
8.3.40.0070.00718.75
8.3.30.0110.00318.67
8.3.20.0030.00618.74
8.3.10.0080.00020.02
8.3.00.0050.00317.80
8.2.180.0100.00718.43
8.2.170.0120.00322.96
8.2.160.0030.01019.04
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0000.00719.64
8.2.110.0060.00319.37
8.2.100.0000.01117.91
8.2.90.0080.00017.91
8.2.80.0000.00817.63
8.2.70.0000.00817.50
8.2.60.0040.00418.05
8.2.50.0080.00018.07
8.2.40.0060.00318.29
8.2.30.0040.00418.11
8.2.20.0040.00417.57
8.2.10.0000.00717.95
8.2.00.0000.00717.96
8.1.280.0070.00725.92
8.1.270.0080.00020.36
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0060.00323.89
8.1.230.0080.00421.03
8.1.220.0040.00417.74
8.1.210.0060.00318.97
8.1.200.0080.00017.23
8.1.190.0040.00417.22
8.1.180.0030.00618.10
8.1.170.0070.00018.46
8.1.160.0000.00718.73
8.1.150.0070.00018.81
8.1.140.0000.00719.50
8.1.130.0000.00817.54
8.1.120.0050.00217.35
8.1.110.0050.00217.41
8.1.100.0040.00417.39
8.1.90.0040.00417.40
8.1.80.0050.00217.22
8.1.70.0000.00717.30
8.1.60.0030.00617.52
8.1.50.0000.00817.46
8.1.40.0040.00417.35
8.1.30.0000.00817.45
8.1.20.0030.00617.54
8.1.10.0000.00717.28
8.1.00.0050.00317.40
8.0.300.0070.00020.03
8.0.290.0070.00016.75
8.0.280.0030.00318.36
8.0.270.0040.00417.14
8.0.260.0000.00617.29
8.0.250.0070.00016.84
8.0.240.0000.00716.94
8.0.230.0040.00416.98
8.0.220.0000.00716.91
8.0.210.0070.00016.88
8.0.200.0000.00716.92
8.0.190.0040.00416.90
8.0.180.0050.00216.94
8.0.170.0060.00316.85
8.0.160.0030.00516.87
8.0.150.0070.00016.75
8.0.140.0030.00416.83
8.0.130.0000.00513.30
8.0.120.0080.00016.88
8.0.110.0040.00416.76
8.0.100.0040.00416.83
8.0.90.0000.00716.91
8.0.80.0090.00616.89
8.0.70.0070.00016.98
8.0.60.0040.00416.71
8.0.50.0040.00416.88
8.0.30.0080.01216.94
8.0.20.0130.00917.40
8.0.10.0030.00617.03
8.0.00.0120.00716.78
7.4.330.0050.00015.08
7.4.320.0030.00316.44
7.4.300.0000.00616.37
7.4.290.0000.00716.33
7.4.280.0000.00816.42
7.4.270.0030.00316.32
7.4.260.0070.00016.57
7.4.250.0070.00016.53
7.4.240.0000.00716.48
7.4.230.0000.00716.32
7.4.220.0100.01016.37
7.4.210.0090.00816.48
7.4.200.0080.00016.46
7.4.160.0120.00316.13
7.4.150.0140.00317.40
7.4.140.0080.00817.86
7.4.130.0090.01116.59
7.4.120.0130.00616.48
7.4.110.0100.01316.47
7.4.100.0070.01016.46
7.4.90.0110.01116.28
7.4.80.0140.00319.39
7.4.70.0060.01216.36
7.4.60.0110.00716.35
7.4.50.0080.00616.25
7.4.40.0190.00616.48
7.4.30.0080.01316.23
7.4.00.0100.00714.81
7.3.330.0000.00613.03
7.3.320.0030.00313.21
7.3.310.0030.00316.13
7.3.300.0030.00316.08
7.3.290.0000.00716.09
7.3.280.0070.01316.23
7.3.270.0100.00717.40
7.3.260.0100.00916.10
7.3.250.0140.01016.28
7.3.240.0050.01116.30
7.3.230.0050.01116.46
7.3.210.0070.01016.50
7.3.200.0090.00616.22
7.3.190.0110.01116.21
7.3.180.0090.00616.36
7.3.170.0100.00716.55
7.3.160.0060.01016.31
7.3.120.0060.01016.90
7.3.110.0030.00916.90
7.3.100.0060.00916.90
7.3.90.0000.01016.90
7.3.80.0070.01016.90
7.3.70.0040.01416.90
7.3.60.0000.01616.90
7.3.50.0060.00916.90
7.3.40.0040.01216.90
7.3.30.0070.00716.90
7.3.20.0040.01116.90
7.3.10.0070.00516.68
7.3.00.0090.00716.65
7.2.330.0070.01416.58
7.2.320.0040.01216.24
7.2.310.0110.01116.37
7.2.300.0180.00016.24
7.2.290.0160.00016.62
7.2.240.0030.01216.90
7.2.230.0110.00416.90
7.2.220.0060.00916.90
7.2.210.0040.01116.90
7.2.200.0000.01516.90
7.2.190.0120.00616.90
7.2.180.0130.00316.90
7.2.170.0030.01416.90
7.2.160.0000.01316.90
7.2.150.0060.01016.90
7.2.140.0060.00916.90
7.2.130.0080.00516.73
7.2.120.0030.01216.64
7.2.110.0100.00616.77
7.2.100.0020.01016.65
7.2.90.0090.00716.87
7.2.80.0100.00416.68
7.2.70.0090.00716.62
7.2.60.0100.00716.65
7.2.50.0110.00616.64
7.2.40.0080.01016.55
7.2.30.0100.00716.67
7.2.20.0120.00616.66
7.2.10.0090.00916.64
7.2.00.0070.00817.35
7.1.330.0100.00616.90
7.1.320.0040.01116.90
7.1.310.0070.00716.90
7.1.300.0030.00916.90
7.1.290.0130.00316.90
7.1.280.0030.01016.90
7.1.270.0070.00716.90
7.1.260.0110.00416.90
7.1.250.0040.00915.95
7.1.200.0030.00915.67
7.1.100.0050.00518.24
7.1.70.0040.01117.06
7.1.60.0070.01019.30
7.1.50.0150.00916.89
7.1.00.0100.07022.36
7.0.200.0070.00316.70
7.0.60.0170.07019.93
7.0.50.0300.05020.38
7.0.40.0500.04720.34
7.0.30.0400.05320.27
7.0.20.0300.06720.36
7.0.10.0330.06720.34
7.0.00.0170.06020.32
5.6.280.0100.07021.03
5.6.210.0100.07720.52
5.6.200.0170.05321.13
5.6.190.0300.06021.13
5.6.180.0230.06321.04
5.6.170.0330.05321.13
5.6.160.0270.06321.05
5.6.150.0400.07021.14
5.6.140.0370.08021.09
5.6.130.0470.07321.15
5.6.120.0200.05721.17
5.6.110.0100.06321.00
5.6.100.0270.06721.07
5.6.90.0200.05721.10
5.6.80.0130.07020.50
5.6.70.0100.06320.50
5.6.60.0300.06020.45
5.6.50.0070.07720.40
5.6.40.0170.06320.39
5.6.30.0230.05020.36
5.6.20.0330.04720.53
5.6.10.0200.05720.44
5.6.00.0170.05320.46
5.5.350.0170.08720.39
5.5.340.0200.05020.81
5.5.330.0200.06720.89
5.5.320.0300.05020.90
5.5.310.0230.06720.78
5.5.300.0430.07321.00
5.5.290.0470.07020.90
5.5.280.0100.06320.68
5.5.270.0230.06320.82
5.5.260.0270.05320.86
5.5.250.0300.07720.62
5.5.240.0170.06320.16
5.5.230.0270.06720.40
5.5.220.0170.05720.30
5.5.210.0300.04720.21
5.5.200.0200.05720.04
5.5.190.0130.06020.20
5.5.180.0130.07020.18
5.5.160.0200.05320.32
5.5.150.0200.05020.21
5.5.140.0300.04320.32
5.5.130.0230.05020.21
5.5.120.0270.07320.21
5.5.110.0100.08320.19
5.5.100.0270.04720.07
5.5.90.0230.05020.14
5.5.80.0270.04320.15
5.5.70.0170.05320.05
5.5.60.0070.06020.23
5.5.50.0100.06020.15
5.5.40.0100.06320.13
5.5.30.0200.05720.09
5.5.20.0230.06020.04
5.5.10.0270.05020.16
5.5.00.0070.06020.01

preferences:
56.19 ms | 401 KiB | 5 Q