3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); for($i=0; $i<2; $i++) { $name = &$a[$i]['name'] = 'name' . ($i+1); $age = $a[$i]['age'] = 'age' . ($i+1); echo "name is " . $name . " and age is " . $age . " ==> "; $name = "bla"; echo "name is " . $a[$i]['name'] . " and age is " . $age . " "; }

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)
5.4.340.0150.03512.01
5.4.320.0060.04712.50
5.4.310.0080.05212.49
5.4.300.0070.03912.50
5.4.290.0070.04012.49
5.4.280.0080.03712.39
5.4.270.0080.04112.39
5.4.260.0080.04312.39
5.4.250.0070.03712.39
5.4.240.0040.03812.39
5.4.230.0050.04212.38
5.4.220.0080.03512.38
5.4.210.0050.03712.38
5.4.200.0110.04612.38
5.4.190.0130.05812.38
5.4.180.0100.04912.38
5.4.170.0060.04212.39
5.4.160.0080.03612.38
5.4.150.0100.03312.38
5.4.140.0090.03712.07
5.4.130.0080.03212.05
5.4.120.0060.03612.02
5.4.110.0070.03912.01
5.4.100.0060.04512.01
5.4.90.0120.04812.01
5.4.80.0080.03512.01
5.4.70.0050.03612.00
5.4.60.0040.03912.00
5.4.50.0070.04112.01
5.4.40.0090.04412.00
5.4.30.0070.04511.99
5.4.20.0080.04611.98
5.4.10.0080.03212.00
5.4.00.0020.04011.48
5.3.290.0060.03912.80
5.3.280.0080.04412.71
5.3.270.0130.04412.73
5.3.260.0070.04112.72
5.3.250.0040.04312.72
5.3.240.0100.04112.72
5.3.230.0090.04312.71
5.3.220.0090.04612.68
5.3.210.0070.04912.68
5.3.200.0050.04912.68
5.3.190.0090.04312.68
5.3.180.0060.05312.68
5.3.170.0100.04412.66
5.3.160.0110.04412.67
5.3.150.0170.06012.68
5.3.140.0110.04712.66
5.3.130.0070.04312.66
5.3.120.0120.03812.66
5.3.110.0090.05012.66
5.3.100.0050.04812.12
5.3.90.0060.03912.08
5.3.80.0080.03612.07
5.3.70.0050.04412.08
5.3.60.0080.03812.07
5.3.50.0060.03712.00
5.3.40.0100.05412.00
5.3.30.0090.06611.95
5.3.20.0120.06711.72
5.3.10.0090.03411.70
5.3.00.0090.03211.68
5.2.170.0030.0349.19
5.2.160.0060.0289.19
5.2.150.0070.0309.19
5.2.140.0070.0299.18
5.2.130.0090.0339.14
5.2.120.0040.0299.14
5.2.110.0040.0299.14
5.2.100.0040.0299.14
5.2.90.0060.0339.14
5.2.80.0060.0359.14
5.2.70.0070.0399.14
5.2.60.0070.0389.10
5.2.50.0070.0369.06
5.2.40.0050.0339.04
5.2.30.0080.0389.02
5.2.20.0020.0339.01
5.2.10.0060.0288.92
5.2.00.0080.0298.78
5.1.60.0050.0298.07
5.1.50.0070.0238.07
5.1.40.0030.0278.05
5.1.30.0080.0228.40
5.1.20.0070.0248.42
5.1.10.0050.0288.15
5.1.00.0010.0308.14
5.0.50.0040.0226.63
5.0.40.0030.0216.48
5.0.30.0050.0306.30
5.0.20.0030.0206.26
5.0.10.0050.0196.25
5.0.00.0030.0326.24
4.4.90.0020.0164.78
4.4.80.0040.0134.75
4.4.70.0020.0164.76
4.4.60.0060.0134.75
4.4.50.0030.0154.77
4.4.40.0050.0244.71
4.4.30.0040.0164.75
4.4.20.0020.0214.84
4.4.10.0040.0144.85
4.4.00.0050.0254.76
4.3.110.0040.0164.67
4.3.100.0010.0194.66
4.3.90.0030.0154.64
4.3.80.0070.0204.58
4.3.70.0040.0144.63
4.3.60.0020.0164.63
4.3.50.0040.0144.63
4.3.40.0030.0244.54
4.3.30.0010.0183.28
4.3.20.0040.0153.26
4.3.10.0040.0163.23
4.3.00.0100.0207.25

preferences:
143.08 ms | 1386 KiB | 7 Q