3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('1', '2', '3'); foreach ($arr as $key=>&$val) { var_dump($arr); $arr[3] = '999'; echo $val."\n"; } unset($val)

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)
5.4.280.0070.05612.34
5.4.270.0090.05012.33
5.4.260.0100.05312.34
5.4.250.0070.06012.34
5.4.240.0150.04912.34
5.4.230.0130.05212.32
5.4.220.0110.04412.32
5.4.210.0140.04712.32
5.4.200.0120.05512.33
5.4.190.0090.05612.32
5.4.180.0060.05312.32
5.4.170.0110.04612.33
5.4.160.0150.04712.32
5.4.150.0070.05412.32
5.4.140.0090.05312.01
5.4.130.0120.04612.00
5.4.120.0080.05311.96
5.4.110.0100.05211.96
5.4.100.0080.05311.96
5.4.90.0120.05611.95
5.4.80.0140.06511.95
5.4.70.0090.05611.95
5.4.60.0100.06311.95
5.4.50.0110.05711.95
5.4.40.0230.05611.94
5.4.30.0120.04711.94
5.4.20.0070.05011.93
5.4.10.0080.05211.94
5.4.00.0120.06411.43
5.3.280.0060.05312.71
5.3.270.0090.05912.72
5.3.260.0110.04512.72
5.3.250.0070.04112.72
5.3.240.0110.04312.72
5.3.230.0090.05212.71
5.3.220.0060.05812.68
5.3.210.0080.05512.68
5.3.200.0100.06812.68
5.3.190.0160.04912.68
5.3.180.0140.05712.68
5.3.170.0110.05712.67
5.3.160.0180.05612.67
5.3.150.0110.04812.68
5.3.140.0130.05012.66
5.3.130.0170.07512.66
5.3.120.0120.05412.65
5.3.110.0070.06012.66
5.3.100.0060.05612.11
5.3.90.0100.06012.08
5.3.80.0090.05712.07
5.3.70.0080.06312.07
5.3.60.0050.05912.07
5.3.50.0120.05712.00
5.3.40.0090.05112.00
5.3.30.0160.05611.94
5.3.20.0120.04711.70
5.3.10.0160.03811.67
5.3.00.0080.06211.66
5.2.170.0090.0459.16
5.2.160.0130.0539.15
5.2.150.0130.0399.16
5.2.140.0100.0549.15
5.2.130.0150.0669.11
5.2.120.0160.0669.11
5.2.110.0140.0779.12
5.2.100.0180.0579.12
5.2.90.0100.0389.11
5.2.80.0080.0579.11
5.2.70.0090.0419.11
5.2.60.0070.0359.06
5.2.50.0180.0439.04
5.2.40.0100.0339.01
5.2.30.0080.0398.99
5.2.20.0060.0428.97
5.2.10.0060.0318.91
5.2.00.0140.0408.76
5.1.60.0080.0228.05
5.1.50.0040.0278.05
5.1.40.0040.0298.04
5.1.30.0050.0308.38
5.1.20.0080.0278.41
5.1.10.0040.0298.13
5.1.00.0050.0308.13
5.0.50.0040.0236.60
5.0.40.0050.0196.47
5.0.30.0040.0556.27
5.0.20.0050.0216.25
5.0.10.0060.0206.23
5.0.00.0050.0346.21
4.4.90.0050.0364.78
4.4.80.0030.0234.76
4.4.70.0050.0234.76
4.4.60.0070.0184.75
4.4.50.0110.0244.77
4.4.40.0110.0414.71
4.4.30.0040.0164.75
4.4.20.0100.0234.85
4.4.10.0030.0174.85
4.4.00.0050.0254.76
4.3.110.0060.0204.67
4.3.100.0040.0214.67
4.3.90.0020.0234.64
4.3.80.0040.0324.59
4.3.70.0080.0384.63
4.3.60.0150.0634.63
4.3.50.0050.0204.62
4.3.40.0040.0254.54
4.3.30.0050.0273.27
4.3.20.0030.0243.25
4.3.10.0070.0173.22
4.3.00.0200.02310.30

preferences:
145.35 ms | 1394 KiB | 7 Q