3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [[1]=>[[100]], [2]=>[[200]]]; $ref = &$arr[1]; $ref[] = [101]; var_dump($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)
5.6.280.0030.07321.13
5.6.250.0100.06020.47
5.6.240.0070.07320.66
5.6.230.0130.06720.68
5.6.220.0030.08320.63
5.6.210.0070.08320.55
5.6.200.0100.07721.11
5.6.190.0170.07720.96
5.6.180.0130.08321.10
5.6.170.0070.08321.02
5.6.160.0100.06021.12
5.6.150.0030.08020.95
5.6.140.0130.08021.09
5.6.130.0070.08321.07
5.6.120.0030.08721.11
5.6.110.0030.05721.04
5.6.100.0030.05021.10
5.6.90.0030.08720.91
5.6.80.0070.07720.35
5.6.70.0000.08720.31
5.6.60.0100.07720.47
5.6.50.0100.07320.45
5.6.40.0070.07720.30
5.6.30.0130.07720.36
5.6.20.0000.09020.38
5.6.10.0070.07720.30
5.6.00.0030.07720.41
5.5.380.0130.07020.37
5.5.370.0030.08320.44
5.5.360.0130.07020.43
5.5.350.0070.04020.38
5.5.340.0030.08320.88
5.5.330.0130.07020.86
5.5.320.0170.05020.91
5.5.310.0130.08020.88
5.5.300.0070.07720.90
5.5.290.0100.08020.77
5.5.280.0200.07720.78
5.5.270.0070.07720.91
5.5.260.0200.06320.88
5.5.250.0070.08320.69
5.5.240.0070.07020.28
5.5.230.0170.05720.29
5.5.220.0100.07320.28
5.5.210.0030.07720.13
5.5.200.0030.08320.11
5.5.190.0070.08020.20
5.5.180.0170.07020.08
5.5.160.0100.07020.07
5.5.150.0030.07720.21
5.5.140.0130.05320.18
5.5.130.0000.08320.26
5.5.120.0030.07020.25
5.5.110.0070.07320.10
5.5.100.0070.05720.13
5.5.90.0070.07719.96
5.5.80.0030.07720.14
5.5.70.0070.08020.14
5.5.60.0070.08020.15
5.5.50.0070.07320.03
5.5.40.0130.07319.94
5.5.30.0030.08020.14
5.5.20.0070.07319.94
5.5.10.0030.07720.03
5.5.00.0230.06719.97
5.4.450.0130.06719.34
5.4.440.0200.06319.38
5.4.430.0100.04719.11
5.4.420.0130.06719.11
5.4.410.0000.08319.10
5.4.400.0100.07319.07
5.4.390.0030.07319.16
5.4.380.0100.07019.05
5.4.370.0070.07719.09
5.4.360.0130.07019.06
5.4.350.0070.07019.07
5.4.340.0100.07318.81
5.4.320.0000.07318.95
5.4.310.0070.04318.82
5.4.300.0030.04019.01
5.4.290.0070.06718.80
5.4.280.0130.07018.90
5.4.270.0100.07319.05
5.4.260.0070.07019.13
5.4.250.0100.06718.97
5.4.240.0030.07319.05
5.4.230.0070.07019.04
5.4.220.0070.05718.78
5.4.210.0100.07019.04
5.4.200.0070.04719.06
5.4.190.0030.07719.03
5.4.180.0100.07719.12
5.4.170.0000.08019.05
5.4.160.0130.06719.05
5.4.150.0000.08318.91
5.4.140.0070.07316.37
5.4.130.0030.07316.29
5.4.120.0070.07316.29
5.4.110.0100.07016.30
5.4.100.0070.07016.25
5.4.90.0070.07016.43
5.4.80.0100.03016.43
5.4.70.0030.03716.20
5.4.60.0030.07716.37
5.4.50.0070.03316.24
5.4.40.0000.04316.46
5.4.30.0030.03716.33
5.4.20.0000.03716.30
5.4.10.0000.03716.30
5.4.00.0030.03715.81
5.3.280.0130.06314.45
5.3.270.0070.06714.61
5.3.260.0100.06714.59
5.3.250.0100.07314.56
5.3.240.0100.07714.52
5.3.230.0070.07014.52
5.3.220.0070.04714.51
5.3.210.0030.08314.55
5.3.200.0100.06314.57
5.3.190.0100.05014.57
5.3.180.0000.04714.57
5.3.170.0000.04014.53
5.3.160.0070.06314.39
5.3.150.0030.03714.52
5.3.140.0070.04014.38
5.3.130.0030.03714.50
5.3.120.0030.04014.41
5.3.110.0070.06014.37
5.3.100.0030.04014.30
5.3.90.0030.03314.30
5.3.80.0070.07014.30
5.3.70.0000.06014.30
5.3.60.0030.03714.30
5.3.50.0030.03714.30
5.3.40.0070.05314.30
5.3.30.0030.03314.30
5.3.20.0030.05714.30
5.3.10.0070.05314.30
5.3.00.0070.07014.30
5.2.170.0000.03314.30
5.2.160.0070.02314.30
5.2.150.0030.03714.30
5.2.140.0000.03014.30
5.2.130.0070.03714.30
5.2.120.0030.02714.30
5.2.110.0030.06314.30
5.2.100.0170.05014.30
5.2.90.0030.06014.30
5.2.80.0070.03714.30
5.2.70.0070.04714.30
5.2.60.0030.04714.30
5.2.50.0000.04014.30
5.2.40.0000.03014.30
5.2.30.0000.03714.30
5.2.20.0130.01714.30
5.2.10.0000.04714.30
5.2.00.0030.04714.30
5.1.60.0000.02314.30
5.1.50.0030.02314.30
5.1.40.0000.02714.30
5.1.30.0070.02014.30
5.1.20.0000.02714.30
5.1.10.0030.02714.30
5.1.00.0000.03714.30
5.0.50.0000.02314.30
5.0.40.0000.02014.30
5.0.30.0000.03314.30
5.0.20.0070.01314.30
5.0.10.0000.02014.30
5.0.00.0070.05314.30
4.4.90.0000.03014.30
4.4.80.0000.03714.30
4.4.70.0000.01714.30
4.4.60.0070.01014.30
4.4.50.0030.01714.30
4.4.40.0030.02714.30
4.4.30.0030.01314.30
4.4.20.0000.01314.30
4.4.10.0000.03014.30
4.4.00.0000.02714.30
4.3.110.0100.00714.30
4.3.100.0000.02714.30
4.3.90.0000.01714.30
4.3.80.0030.02014.30
4.3.70.0000.02314.30
4.3.60.0000.01314.30
4.3.50.0000.01714.30
4.3.40.0000.02314.30
4.3.30.0030.02014.30
4.3.20.0000.01314.30
4.3.10.0030.01314.30
4.3.00.0000.01714.30

preferences:
143.25 ms | 1394 KiB | 7 Q