3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = ['a' => 1]; $arr['b'] = &$arr['a']; var_dump($arr); $arr['b'] = 'xiami'; var_dump($arr);

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)
8.3.60.0180.00016.75
8.3.50.0150.00016.35
8.3.40.0120.00618.71
8.3.30.0000.01418.60
8.3.20.0040.00420.04
8.3.10.0040.00423.48
8.3.00.0080.00023.65
8.2.180.0090.00618.41
8.2.170.0140.00022.96
8.2.160.0130.00720.35
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00422.22
8.2.120.0040.00426.35
8.2.110.0030.00620.38
8.2.100.0080.00417.78
8.2.90.0000.00818.93
8.2.80.0050.00317.97
8.2.70.0050.00317.36
8.2.60.0080.00017.93
8.2.50.0080.00018.16
8.2.40.0040.00420.53
8.2.30.0000.00819.22
8.2.20.0050.00317.93
8.2.10.0040.00418.05
8.2.00.0040.00417.93
8.1.280.0080.00625.92
8.1.270.0150.00423.76
8.1.260.0050.00226.35
8.1.250.0050.00328.09
8.1.240.0120.00021.89
8.1.230.0070.00420.84
8.1.220.0000.00717.74
8.1.210.0050.00318.77
8.1.200.0070.00317.35
8.1.190.0030.00517.23
8.1.180.0080.00318.10
8.1.170.0040.00418.48
8.1.160.0000.00818.86
8.1.150.0030.00520.59
8.1.140.0040.00419.50
8.1.130.0030.00318.82
8.1.120.0040.00417.39
8.1.110.0050.00317.27
8.1.100.0000.00717.31
8.1.90.0080.00017.42
8.1.80.0050.00317.34
8.1.70.0070.00017.27
8.1.60.0040.00417.52
8.1.50.0040.00417.45
8.1.40.0030.00617.46
8.1.30.0030.00617.64
8.1.20.0080.00017.52
8.1.10.0000.00717.61
8.1.00.0040.00417.38
8.0.300.0000.00818.77
8.0.290.0000.00816.63
8.0.280.0070.00018.45
8.0.270.0040.00417.12
8.0.260.0000.00816.67
8.0.250.0040.00416.88
8.0.240.0030.00516.77
8.0.230.0000.00716.88
8.0.220.0040.00416.85
8.0.210.0000.00716.85
8.0.200.0030.00316.84
8.0.190.0000.00716.96
8.0.180.0040.00416.86
8.0.170.0000.00716.77
8.0.160.0000.00716.78
8.0.150.0070.00016.72
8.0.140.0030.00616.83
8.0.130.0030.00313.28
8.0.120.0080.00016.84
8.0.110.0020.00516.80
8.0.100.0040.00416.61
8.0.90.0040.00416.71
8.0.80.0060.00916.87
8.0.70.0000.00716.79
8.0.60.0040.00416.84
8.0.50.0040.00416.84
8.0.30.0130.00817.04
8.0.20.0120.00917.40
8.0.10.0000.00716.97
8.0.00.0090.00916.57
7.4.330.0060.00015.55
7.4.320.0060.00016.54
7.4.300.0000.00616.43
7.4.290.0000.00716.50
7.4.280.0060.00316.43
7.4.270.0070.00316.52
7.4.260.0070.00016.34
7.4.250.0070.00016.39
7.4.240.0000.00816.45
7.4.230.0070.00016.43
7.4.220.0140.00716.39
7.4.210.0070.01116.56
7.4.200.0030.00316.32
7.4.160.0080.01316.44
7.4.150.0100.01617.40
7.4.140.0100.01017.86
7.4.130.0070.01116.55
7.4.120.0140.00616.47
7.4.110.0130.00416.38
7.4.100.0100.01016.46
7.4.90.0090.01516.50
7.4.80.0080.00819.39
7.4.70.0000.01716.40
7.4.60.0030.01316.25
7.4.50.0070.00716.52
7.4.40.0070.01016.63
7.4.30.0090.00616.46
7.4.00.0030.01314.93
7.3.330.0000.00512.95
7.3.320.0050.00013.09
7.3.310.0030.00316.05
7.3.300.0050.00216.25
7.3.290.0090.00616.27
7.3.280.0080.00916.20
7.3.270.0120.00617.40
7.3.260.0070.01016.33
7.3.250.0090.00916.28
7.3.240.0090.00816.37
7.3.230.0090.00916.24
7.3.210.0120.00616.27
7.3.200.0140.00316.59
7.3.190.0100.01016.21
7.3.180.0080.00816.17
7.3.170.0060.00916.16
7.3.160.0090.01216.24
7.3.10.0430.00714.57
7.3.00.0310.00814.77
7.2.330.0080.00816.69
7.2.320.0110.00816.62
7.2.310.0100.00716.61
7.2.300.0100.00716.72
7.2.290.0070.01016.38
7.2.130.0390.01014.98
7.2.120.0440.00614.94
7.2.110.0920.01014.83
7.2.100.0370.00914.81
7.2.90.0410.00614.70
7.2.80.0380.01414.86
7.2.70.0540.00414.97
7.2.60.0220.00915.89
7.2.50.0430.00014.79
7.2.40.0500.00914.84
7.2.30.0480.00315.01
7.2.20.0430.01015.01
7.2.10.0500.00714.93
7.2.00.0680.00715.05
7.1.250.0330.01013.57
7.1.240.0410.00713.80
7.1.230.0410.00713.81
7.1.220.0490.00713.85
7.1.210.0440.00714.06
7.1.200.0350.00314.86
7.1.190.0530.00714.04
7.1.180.0580.01513.86
7.1.170.0530.01014.00
7.1.160.0500.01313.95
7.1.150.0510.01113.91
7.1.140.0460.00913.88
7.1.130.0530.01513.59
7.1.120.0540.01613.95
7.1.110.0610.00915.96
7.1.100.0320.01316.08
7.1.90.0310.01515.95
7.1.80.0280.00815.95
7.1.70.0260.00715.48
7.1.60.0310.01024.50
7.1.50.0400.00524.34
7.1.40.0270.01124.09
7.1.30.0420.00823.96
7.1.20.0330.01224.23
7.1.10.0290.00515.06
7.1.00.0310.00815.19
7.0.330.0540.00913.38
7.0.320.0590.00013.41
7.0.310.0560.00913.55
7.0.300.0590.00313.55
7.0.290.0360.01013.76
7.0.280.0630.00713.33
7.0.270.0770.00713.59
7.0.260.0400.01313.42
7.0.250.0270.00515.51
7.0.240.0350.01415.61
7.0.230.0260.01715.63
7.0.220.0360.00215.49
7.0.210.0230.01115.04
7.0.200.0210.00615.26
7.0.190.0330.00515.11
7.0.180.0280.00815.02
7.0.170.0280.01314.90
7.0.160.0280.01314.80
7.0.150.0230.00714.89
7.0.140.0310.00914.87
7.0.130.0360.01215.07
7.0.120.0410.01215.05
7.0.110.0270.01314.87
7.0.100.0420.00814.97
7.0.90.0390.00614.85
7.0.80.0340.00514.91
7.0.70.0270.00814.80
7.0.60.0290.00714.80
7.0.50.0820.00714.96
7.0.40.0320.00314.89
7.0.30.0290.00714.91
7.0.20.0280.01015.01
7.0.10.0240.01314.91
7.0.00.0320.00814.79
5.6.380.0120.01814.45

preferences:
77.74 ms | 401 KiB | 5 Q