3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = &$a['foo']['bar']; var_dump($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)
8.3.60.0110.00718.31
8.3.50.0100.01016.36
8.3.40.0120.00318.59
8.3.30.0090.00618.53
8.3.20.0000.00820.14
8.3.10.0050.00321.76
8.3.00.0000.00820.73
8.2.180.0040.01118.41
8.2.170.0120.00322.96
8.2.160.0100.00321.96
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00022.07
8.2.120.0000.00726.16
8.2.110.0070.00322.07
8.2.100.0040.00817.72
8.2.90.0040.00419.09
8.2.80.0050.00317.97
8.2.70.0000.00917.63
8.2.60.0000.00818.04
8.2.50.0040.00418.10
8.2.40.0000.00822.31
8.2.30.0030.00621.07
8.2.20.0040.00417.93
8.2.10.0000.00717.93
8.2.00.0040.00418.09
8.1.280.0070.01325.92
8.1.270.0080.00023.97
8.1.260.0060.00626.35
8.1.250.0030.00528.09
8.1.240.0090.00023.92
8.1.230.0070.00422.11
8.1.220.0040.00417.76
8.1.210.0000.00718.77
8.1.200.0040.00417.22
8.1.190.0000.00817.23
8.1.180.0000.01018.10
8.1.170.0080.00018.53
8.1.160.0040.00419.00
8.1.150.0080.00018.74
8.1.140.0000.00719.49
8.1.130.0030.00318.86
8.1.120.0110.00017.30
8.1.110.0040.00417.29
8.1.100.0040.00417.43
8.1.90.0040.00417.29
8.1.80.0040.00417.27
8.1.70.0030.00317.44
8.1.60.0040.00417.55
8.1.50.0040.00417.38
8.1.40.0030.00617.48
8.1.30.0070.00017.56
8.1.20.0000.00817.40
8.1.10.0050.00317.43
8.1.00.0060.00317.44
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0030.00318.29
8.0.270.0030.00317.17
8.0.260.0030.00316.78
8.0.250.0000.00716.82
8.0.240.0040.00416.62
8.0.230.0030.00716.80
8.0.220.0030.00316.69
8.0.210.0070.00016.69
8.0.200.0030.00316.88
8.0.190.0000.00816.89
8.0.180.0070.00016.73
8.0.170.0000.00716.80
8.0.160.0080.00016.73
8.0.150.0050.00316.73
8.0.140.0040.00416.66
8.0.130.0080.00013.22
8.0.120.0000.00816.75
8.0.110.0030.00516.82
8.0.100.0000.00716.59
8.0.90.0040.00416.79
8.0.80.0090.00916.76
8.0.70.0000.00716.80
8.0.60.0060.00316.78
8.0.50.0050.00216.69
8.0.30.0100.01016.79
8.0.20.0120.00717.40
8.0.10.0040.00417.01
8.0.00.0080.00816.80
7.4.330.0000.00515.55
7.4.320.0030.00316.34
7.4.300.0060.00016.43
7.4.290.0080.00016.29
7.4.280.0040.00416.43
7.4.270.0000.00716.58
7.4.260.0040.00416.44
7.4.250.0030.00316.54
7.4.240.0070.00016.45
7.4.230.0000.00716.46
7.4.220.0150.00316.48
7.4.210.0100.00416.46
7.4.200.0030.00316.39
7.4.160.0070.01216.28
7.4.150.0110.00717.40
7.4.140.0090.01117.86
7.4.130.0150.01216.38
7.4.120.0070.01516.49
7.4.110.0100.00616.29
7.4.100.0130.00716.61
7.4.90.0090.00916.39
7.4.80.0030.02219.39
7.4.70.0100.00716.48
7.4.60.0060.01216.38
7.4.50.0090.00316.47
7.4.40.0090.00616.32
7.4.30.0120.00916.39
7.4.00.0070.01014.89
7.3.330.0060.00012.90
7.3.320.0000.00513.08
7.3.310.0030.00316.04
7.3.300.0070.00016.10
7.3.290.0030.00316.05
7.3.280.0070.01016.19
7.3.270.0160.00817.40
7.3.260.0080.00916.31
7.3.250.0130.00416.27
7.3.240.0080.00816.28
7.3.230.0060.01416.37
7.3.210.0130.00416.29
7.3.200.0070.01016.40
7.3.190.0090.00616.24
7.3.180.0100.00716.22
7.3.170.0080.00816.32
7.3.160.0100.00716.37
7.3.120.0070.00914.72
7.3.110.0070.01014.30
7.3.100.0120.00314.71
7.3.90.0030.00714.62
7.3.80.0060.00714.87
7.3.70.0060.00814.56
7.3.60.0030.01014.64
7.3.50.0030.01014.76
7.3.40.0090.00614.68
7.3.30.0070.00714.46
7.3.20.0060.00816.62
7.3.10.0050.00916.45
7.3.00.0030.00816.52
7.2.330.0080.00816.60
7.2.320.0100.01316.37
7.2.310.0070.01116.58
7.2.300.0070.01716.58
7.2.290.0190.01316.58
7.2.250.0100.00814.75
7.2.240.0070.01014.73
7.2.230.0130.00314.88
7.2.220.0050.00914.98
7.2.210.0040.00714.80
7.2.200.0070.00714.76
7.2.190.0050.00914.95
7.2.180.0050.01114.98
7.2.170.0060.00914.82
7.1.330.0130.00115.74
7.1.320.0050.00815.91
7.1.310.0110.00215.57
7.1.300.0050.01015.54
7.1.290.0060.00615.52
7.1.280.0060.00815.65
7.1.270.0060.00715.66
7.1.260.0050.00515.67
7.1.100.0000.01318.27
7.1.70.0080.00817.17
7.1.60.0530.01032.91
7.1.50.0570.01032.99
7.1.40.0400.00732.32
7.1.30.1100.01332.55
7.1.20.0370.01032.56
7.1.10.0270.00714.69
7.1.00.0430.01314.75
7.0.200.0270.01315.00
7.0.190.0470.01014.75
7.0.180.0270.00714.25
7.0.170.0270.01014.36
7.0.160.0270.01014.20
7.0.150.0200.01314.11
7.0.140.0300.00714.38
7.0.130.0270.01014.76
7.0.120.0300.00714.63
7.0.110.0400.01714.55
7.0.100.0270.01014.36
7.0.90.0300.00714.36
7.0.80.0430.01014.55
7.0.70.0270.00714.35
7.0.60.0300.00714.29
7.0.50.0270.00714.70
7.0.40.0300.00314.65
7.0.30.0230.01314.66
7.0.20.0270.01014.71
7.0.10.0300.00714.71
7.0.00.0270.01014.48

preferences:
51.84 ms | 400 KiB | 5 Q