3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => ['b' => 1]]; $c = &$a['a']; $c['b'] = 2; var_dump($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)
8.3.60.0120.00916.38
8.3.50.0090.00616.63
8.3.40.0120.00318.62
8.3.30.0110.00418.70
8.3.20.0050.00320.16
8.3.10.0000.00823.58
8.3.00.0030.00519.26
8.2.180.0040.01416.61
8.2.170.0070.00722.96
8.2.160.0030.01320.44
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00721.00
8.2.120.0000.00726.35
8.2.110.0030.00620.88
8.2.100.0120.00018.09
8.2.90.0030.00519.17
8.2.80.0000.00817.97
8.2.70.0040.00417.38
8.2.60.0000.00817.93
8.2.50.0000.00818.10
8.2.40.0000.00720.42
8.2.30.0040.00419.30
8.2.20.0040.00418.06
8.2.10.0000.00818.04
8.2.00.0030.00318.02
8.1.280.0130.00325.92
8.1.270.0040.00422.03
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0040.00423.95
8.1.230.0040.00819.03
8.1.220.0080.00017.78
8.1.210.0080.00018.77
8.1.200.0000.00817.36
8.1.190.0070.00017.22
8.1.180.0070.00018.10
8.1.170.0000.00820.37
8.1.160.0030.00318.95
8.1.150.0030.00520.61
8.1.140.0040.00419.42
8.1.130.0000.00818.73
8.1.120.0030.00517.44
8.1.110.0080.00017.34
8.1.100.0070.00017.41
8.1.90.0000.00817.28
8.1.80.0000.00717.43
8.1.70.0030.00317.40
8.1.60.0000.00817.54
8.1.50.0040.00417.31
8.1.40.0000.00717.48
8.1.30.0040.00417.52
8.1.20.0000.00817.52
8.1.10.0050.00217.39
8.1.00.0000.00817.27
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0030.00318.25
8.0.270.0030.00317.11
8.0.260.0030.00316.80
8.0.250.0070.00016.88
8.0.240.0000.00816.90
8.0.230.0040.00516.79
8.0.220.0000.00716.71
8.0.210.0040.00416.72
8.0.200.0000.00716.87
8.0.190.0080.00016.89
8.0.180.0030.00316.82
8.0.170.0050.00216.76
8.0.160.0070.00016.87
8.0.150.0000.00916.80
8.0.140.0000.00816.75
8.0.130.0030.00313.25
8.0.120.0040.00416.77
8.0.110.0040.00416.93
8.0.100.0040.00416.74
8.0.90.0000.00716.77
8.0.80.0060.00916.86
8.0.70.0030.00316.78
8.0.60.0000.00816.76
8.0.50.0000.00716.67
8.0.30.0140.00516.90
8.0.20.0090.01017.40
8.0.10.0000.00716.75
8.0.00.0100.01016.86
7.4.330.0000.00515.55
7.4.320.0000.00616.35
7.4.300.0070.00016.45
7.4.290.0070.00016.55
7.4.280.0040.00416.57
7.4.270.0040.00416.52
7.4.260.0100.00016.41
7.4.250.0070.00016.51
7.4.240.0070.00016.46
7.4.230.0000.00716.50
7.4.220.0110.00716.49
7.4.210.0050.00816.53
7.4.200.0040.00416.20
7.4.160.0130.00616.50
7.4.150.0150.00317.40
7.4.140.0110.00717.86
7.4.130.0180.00716.48
7.4.120.0090.00916.44
7.4.110.0100.00716.49
7.4.100.0150.00516.42
7.4.90.0120.00616.32
7.4.80.0110.01119.39
7.4.70.0030.01316.46
7.4.60.0060.01116.50
7.4.50.0000.01616.39
7.4.40.0160.00016.63
7.4.30.0090.00616.49
7.4.00.0090.00714.86
7.3.330.0000.00512.95
7.3.320.0020.00212.96
7.3.310.0060.00316.40
7.3.300.0000.00716.20
7.3.290.0060.01116.22
7.3.280.0080.00916.20
7.3.270.0160.00317.40
7.3.260.0080.01116.37
7.3.250.0100.01016.40
7.3.240.0100.00716.23
7.3.230.0090.00916.21
7.3.210.0060.01116.11
7.3.200.0060.01216.21
7.3.190.0180.00016.50
7.3.180.0130.00816.40
7.3.170.0100.00716.43
7.3.160.0040.01316.25
7.3.120.0030.01014.82
7.3.110.0060.01215.01
7.3.100.0070.00714.82
7.3.90.0070.00714.77
7.3.80.0030.01015.09
7.3.70.0100.00314.80
7.3.60.0060.00914.69
7.3.50.0040.00714.50
7.3.40.0120.00314.93
7.3.30.0070.00314.47
7.3.20.0040.01116.41
7.3.10.0060.00916.43
7.3.00.0030.01216.62
7.2.330.0050.01316.64
7.2.320.0150.00316.46
7.2.310.0160.00016.66
7.2.300.0140.00316.59
7.2.290.0100.00716.66
7.2.250.0070.01114.93
7.2.240.0030.01514.88
7.2.230.0040.01114.82
7.2.220.0060.00314.52
7.2.210.0110.00714.58
7.2.200.0030.00714.61
7.2.190.0000.00914.90
7.2.180.0040.01114.70
7.2.170.0000.00914.94
7.2.90.0150.00314.77
7.2.80.1150.00714.57
7.2.70.1710.00715.03
7.2.60.1650.00314.82
7.2.50.1480.00714.85
7.2.40.1510.00315.01
7.2.30.1180.00714.64
7.2.20.1320.01014.80
7.2.10.1400.00614.80
7.2.00.1490.00315.06
7.1.330.0060.00915.89
7.1.320.0060.00315.89
7.1.310.0000.01015.61
7.1.300.0070.00415.76
7.1.290.0040.00715.52
7.1.280.0070.00415.77
7.1.270.0070.00715.89
7.1.260.0070.00715.85
7.1.210.0130.00514.05
7.1.200.0350.00613.75
7.1.190.0640.01613.82
7.1.180.1660.00613.70
7.1.170.1430.01013.94
7.1.160.1530.01314.02
7.1.150.1250.00713.82
7.1.140.1090.00613.86
7.1.130.1680.00313.94
7.1.120.1840.00313.48
7.1.110.1680.01013.83
7.1.100.2430.01013.86
7.1.90.2480.01013.55
7.1.80.0160.00813.88
7.1.70.0130.00913.96
7.1.60.2790.02031.74
7.1.50.2120.01031.67
7.1.40.0290.01331.83
7.1.30.0770.00631.78
7.1.20.0260.01431.48
7.1.10.1030.00313.63
7.1.00.0130.00513.87
7.0.310.0080.01213.45
7.0.300.1300.00713.36
7.0.290.1640.00713.18
7.0.280.0920.01213.36
7.0.270.1440.00713.21
7.0.260.1730.01013.09
7.0.250.1410.01013.46
7.0.240.1270.00313.41
7.0.230.2010.00713.79
7.0.220.1360.00713.57
7.0.210.0060.01213.43
7.0.200.3040.01013.18
7.0.190.1270.00313.60
7.0.180.0650.00313.37
7.0.170.1760.00313.63
7.0.160.0650.00713.35
7.0.150.0160.01313.59
7.0.140.0120.00613.62
7.0.130.0480.00913.51
7.0.120.0130.00613.62
7.0.110.1080.00913.47
7.0.100.0070.01613.53
7.0.90.0320.01013.45
7.0.80.0030.01313.40
7.0.70.1440.01013.59
7.0.60.0540.00013.42
7.0.50.0650.00313.40
7.0.40.0530.00313.27
7.0.30.0160.00013.58
7.0.20.0200.00313.42
7.0.10.0120.00613.48
7.0.00.0160.00313.41

preferences:
39.29 ms | 401 KiB | 5 Q