3v4l.org

run code in 200+ PHP versions simultaneously
<?php $a = array('dupa' => 2, 'zupa' => 3); unset($a['dupa']); 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)
7.4.00.0000.01114.76
7.3.120.0090.00614.77
7.1.200.0040.00415.84
7.1.70.0040.00417.24
7.1.60.0160.00619.40
7.1.50.0040.01816.86
7.1.00.0030.05322.35
7.0.200.0000.00916.76
7.0.140.0030.06721.92
7.0.70.0000.04021.68
7.0.60.0030.05021.76
7.0.50.0000.04022.12
7.0.40.0030.04320.14
7.0.30.0030.06720.17
7.0.20.0030.04720.11
7.0.10.0030.08319.99
7.0.00.0100.09020.07
5.6.220.0000.04320.61
5.6.210.0000.03720.74
5.6.200.0030.04021.05
5.6.190.0100.05721.03
5.6.180.0070.03720.96
5.6.170.0100.05021.03
5.6.160.0000.04321.11
5.6.150.0070.04021.11
5.6.140.0070.08321.00
5.6.130.0070.08021.00
5.6.120.0070.05721.03
5.6.110.0070.06721.01
5.6.100.0030.07721.09
5.6.90.0030.09021.14
5.6.80.0000.06320.49
5.6.70.0000.08320.43
5.6.60.0030.06020.32
5.6.50.0100.07720.40
5.6.40.0030.08020.39
5.6.30.0030.08720.30
5.6.20.0070.08020.43
5.6.10.0070.07720.45
5.6.00.0030.07020.29
5.5.360.0030.04020.38
5.5.350.0000.04020.41
5.5.340.0030.04020.88
5.5.330.0030.05020.91
5.5.320.0000.09020.88
5.5.310.0030.05020.75
5.5.300.0000.07020.81
5.5.290.0070.04320.85
5.5.280.0070.04020.80
5.5.270.0070.08320.81
5.5.260.0100.08020.91
5.5.250.0070.08720.63
5.5.240.0100.07720.26
5.5.230.0030.08320.24
5.5.220.0000.06320.13
5.5.210.0030.08020.28
5.5.200.0070.07020.15
5.5.190.0000.08320.26
5.5.180.0030.08320.14
5.5.160.0070.08020.10
5.5.150.0070.08020.13
5.5.140.0030.07320.10
5.5.130.0000.08319.98
5.5.120.0070.08020.10
5.5.110.0070.03720.25
5.5.100.0000.05720.08
5.5.90.0000.08019.96
5.5.80.0070.07720.15
5.5.70.0070.07020.14
5.5.60.0000.04320.05
5.5.50.0070.07320.02
5.5.40.0000.08020.05
5.5.30.0030.07319.95
5.5.20.0070.05720.12
5.5.10.0100.06020.10
5.5.00.0030.08020.06
5.4.450.0030.08719.38
5.4.440.0000.08719.44
5.4.430.0000.08719.13
5.4.420.0000.08719.30
5.4.410.0070.07319.32
5.4.400.0100.07019.15
5.4.390.0070.07319.14
5.4.380.0100.06719.02
5.4.370.0000.04719.06
5.4.360.0100.07318.79
5.4.350.0030.08019.06
5.4.340.0030.08318.79
5.4.320.0000.08019.25
5.4.310.0070.08019.03
5.4.300.0070.05019.11
5.4.290.0070.07319.01
5.4.280.0100.07319.05
5.4.270.0070.05319.05
5.4.260.0030.06319.18
5.4.250.0030.07018.93
5.4.240.0030.07019.11
5.4.230.0030.07718.75
5.4.220.0030.08319.07
5.4.210.0070.05319.09
5.4.200.0100.07018.80
5.4.190.0070.04319.05
5.4.180.0030.07019.22
5.4.170.0000.08719.05
5.4.160.0070.06718.97
5.4.150.0030.08018.92
5.4.140.0000.05016.07
5.4.130.0070.07316.09
5.4.120.0000.07316.36
5.4.110.0070.05316.36
5.4.100.0000.07316.36
5.4.90.0130.07016.33
5.4.80.0000.05016.32
5.4.70.0070.06716.40
5.4.60.0030.06716.28
5.4.50.0000.07316.27
5.4.40.0000.05716.40
5.4.30.0070.05016.35
5.4.20.0030.06016.40
5.4.10.0070.07716.37
5.4.00.0030.06315.77
5.3.290.0100.05714.52
5.3.280.0030.03714.57
5.3.270.0030.07714.43
5.3.260.0030.06314.57
5.3.250.0070.06014.57
5.3.240.0030.07314.54
5.3.230.0000.05714.59
5.3.220.0030.04714.51
5.3.210.0030.06014.42
5.3.200.0070.07314.52
5.3.190.0000.08014.54
5.3.180.0070.07014.41
5.3.170.0000.05014.55
5.3.160.0070.06314.47
5.3.150.0070.04014.42
5.3.140.0030.07314.38
5.3.130.0000.08714.54
5.3.120.0100.07014.54
5.3.110.0000.08014.50
5.3.100.0000.07713.89
5.3.90.0030.06714.00
5.3.80.0100.06713.98
5.3.70.0030.06014.02
5.3.60.0070.06713.75
5.3.50.0030.07313.90
5.3.40.0000.06013.70
5.3.30.0030.04013.89
5.3.20.0070.07313.69
5.3.10.0070.07313.66
5.3.00.0030.07013.54
5.2.170.0030.06312.18
5.2.160.0000.05312.18
5.2.150.0070.05712.18
5.2.140.0000.07012.18
5.2.130.0000.05712.18
5.2.120.0030.06312.18
5.2.110.0000.06012.18
5.2.100.0000.05312.18
5.2.90.0000.05312.18
5.2.80.0030.05012.18
5.2.70.0030.06012.18
5.2.60.0000.03312.18
5.2.50.0070.06012.18
5.2.40.0000.06712.18
5.2.30.0000.06012.18
5.2.20.0030.06012.18
5.2.10.0100.05712.18
5.2.00.0000.06712.18
5.1.60.0070.05012.18
5.1.50.0000.03712.18
5.1.40.0000.02712.18
5.1.30.0030.04712.18
5.1.20.0070.05312.18
5.1.10.0030.05712.18
5.1.00.0030.05712.18
5.0.50.0000.02312.18
5.0.40.0100.03312.18
5.0.30.0000.06712.18
5.0.20.0000.04712.18
5.0.10.0030.04012.18
5.0.00.0000.04712.18
4.4.90.0100.01712.18
4.4.80.0030.03012.18
4.4.70.0000.03012.18
4.4.60.0000.03012.18
4.4.50.0000.03712.18
4.4.40.0030.04712.18
4.4.30.0030.03012.18
4.4.20.0070.03312.18
4.4.10.0000.02712.18
4.4.00.0000.05712.18
4.3.110.0030.03312.18
4.3.100.0000.03712.18
4.3.90.0000.03012.18
4.3.80.0030.05312.18
4.3.70.0030.03312.18
4.3.60.0000.02712.18
4.3.50.0000.02312.18
4.3.40.0000.05712.18
4.3.30.0000.03712.18
4.3.20.0000.03712.18
4.3.10.0000.03712.18
4.3.00.0000.03712.18