3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array['Level 1'] = array('1',2,3); unset($array['Level 1']; var_dump($array);

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)
5.4.320.0090.04812.50
5.4.310.0060.04412.49
5.4.300.0040.04112.49
5.4.290.0070.04512.50
5.4.280.0070.04412.39
5.4.270.0140.03512.39
5.4.260.0090.03612.39
5.4.250.0060.03912.39
5.4.240.0100.03312.39
5.4.230.0080.03912.38
5.4.220.0050.03912.38
5.4.210.0090.03312.38
5.4.200.0110.03412.38
5.4.190.0030.04212.38
5.4.180.0090.03412.38
5.4.170.0080.03512.38
5.4.160.0050.03812.38
5.4.150.0070.03612.38
5.4.140.0070.03812.07
5.4.130.0090.03812.05
5.4.120.0080.03412.01
5.4.110.0050.03712.01
5.4.100.0070.03512.01
5.4.90.0050.04312.01
5.4.80.0090.03612.01
5.4.70.0080.03312.01
5.4.60.0080.03312.00
5.4.50.0090.03412.01
5.4.40.0050.03712.00
5.4.30.0060.03611.99
5.4.20.0070.03411.99
5.4.10.0110.03011.99
5.4.00.0040.04311.48
5.3.290.0080.03812.80
5.3.280.0070.03612.71
5.3.270.0050.04012.73
5.3.260.0060.04012.72
5.3.250.0090.03512.72
5.3.240.0080.04112.72
5.3.230.0120.04912.70
5.3.220.0100.05112.68
5.3.210.0110.05112.68
5.3.200.0080.05112.68
5.3.190.0050.04212.68
5.3.180.0060.03712.67
5.3.170.0080.04012.67
5.3.160.0050.03912.67
5.3.150.0070.03712.67
5.3.140.0070.03612.66
5.3.130.0050.04112.66
5.3.120.0090.03712.65
5.3.110.0070.04812.66
5.3.100.0100.04112.12
5.3.90.0050.03812.08
5.3.80.0090.04512.08
5.3.70.0080.03912.07
5.3.60.0080.04812.07
5.3.50.0100.05312.00
5.3.40.0100.04212.00
5.3.30.0090.05011.95
5.3.20.0070.05111.73
5.3.10.0110.04911.70
5.3.00.0080.05211.68
5.2.170.0060.0349.18
5.2.160.0080.0279.18
5.2.150.0080.0309.18
5.2.140.0050.0309.18
5.2.130.0070.0279.14
5.2.120.0050.0349.14
5.2.110.0080.0389.14
5.2.100.0090.0269.14
5.2.90.0050.0309.14
5.2.80.0010.0399.14
5.2.70.0070.0309.14
5.2.60.0060.0319.09
5.2.50.0070.0309.06
5.2.40.0090.0309.04
5.2.30.0060.0289.01
5.2.20.0040.0309.01
5.2.10.0050.0278.92
5.2.00.0030.0318.79
5.1.60.0060.0238.07
5.1.50.0060.0258.06
5.1.40.0060.0238.04
5.1.30.0060.0248.39
5.1.20.0060.0248.42
5.1.10.0040.0278.14
5.1.00.0040.0268.14
5.0.50.0060.0196.62
5.0.40.0050.0206.48
5.0.30.0030.0416.29
5.0.20.0040.0216.27
5.0.10.0080.0206.24
5.0.00.0040.0356.23
4.4.90.0070.0184.78
4.4.80.0040.0154.75
4.4.70.0030.0164.75
4.4.60.0040.0194.76
4.4.50.0030.0164.77
4.4.40.0020.0274.71
4.4.30.0050.0154.76
4.4.20.0030.0194.85
4.4.10.0030.0234.85
4.4.00.0040.0304.76
4.3.110.0060.0214.67
4.3.100.0060.0144.66
4.3.90.0000.0174.64
4.3.80.0020.0254.58
4.3.70.0020.0154.63
4.3.60.0010.0164.63
4.3.50.0030.0174.63
4.3.40.0030.0264.54
4.3.30.0030.0213.29
4.3.20.0030.0213.27
4.3.10.0020.0223.22
4.3.00.0070.01313.95

preferences:
152.83 ms | 1394 KiB | 7 Q