3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "null"; $arr = get_defined_vars(); foreach($arr as (array) $a) { echo in_array('str',$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)
5.4.290.0080.03912.49
5.4.280.0070.04412.39
5.4.270.0070.04112.39
5.4.260.0050.04912.39
5.4.250.0080.04512.39
5.4.240.0110.04012.39
5.4.230.0050.04512.38
5.4.220.0100.04812.39
5.4.210.0090.03612.38
5.4.200.0080.03712.39
5.4.190.0050.03812.38
5.4.180.0100.03612.38
5.4.170.0080.03712.39
5.4.160.0090.03312.39
5.4.150.0040.04012.38
5.4.140.0080.03812.07
5.4.130.0060.03712.05
5.4.120.0050.04212.02
5.4.110.0060.03612.01
5.4.100.0080.03412.02
5.4.90.0070.03712.01
5.4.80.0070.03712.01
5.4.70.0090.03212.00
5.4.60.0060.03612.01
5.4.50.0090.03612.01
5.4.40.0060.03612.00
5.4.30.0100.03312.00
5.4.20.0090.03411.99
5.4.10.0060.03511.99
5.4.00.0030.04111.48
5.3.280.0130.03912.71
5.3.270.0120.05312.73
5.3.260.0070.04012.72
5.3.250.0080.04512.72
5.3.240.0060.04112.72
5.3.230.0050.05212.71
5.3.220.0090.03912.68
5.3.210.0060.04012.68
5.3.200.0050.03812.68
5.3.190.0080.03512.68
5.3.180.0040.03912.67
5.3.170.0060.03712.67
5.3.160.0050.04212.67
5.3.150.0070.04312.67
5.3.140.0080.03412.66
5.3.130.0080.03812.65
5.3.120.0050.05612.66
5.3.110.0100.04312.66
5.3.100.0110.05412.12
5.3.90.0110.05312.08
5.3.80.0040.04312.08
5.3.70.0060.03812.07
5.3.60.0070.03712.06
5.3.50.0090.03512.00
5.3.40.0050.04012.00
5.3.30.0060.03611.95
5.3.20.0060.03711.73
5.3.10.0070.03511.70
5.3.00.0040.03811.69
5.2.170.0080.0289.18
5.2.160.0080.0279.18
5.2.150.0040.0329.18
5.2.140.0040.0329.18
5.2.130.0060.0289.14
5.2.120.0070.0269.14
5.2.110.0040.0329.14
5.2.100.0020.0329.14
5.2.90.0050.0339.14
5.2.80.0040.0359.14
5.2.70.0100.0389.14
5.2.60.0090.0349.09
5.2.50.0020.0359.06
5.2.40.0050.0319.04
5.2.30.0040.0329.02
5.2.20.0030.0339.00
5.2.10.0060.0298.92
5.2.00.0040.0328.78
5.1.60.0050.0258.07
5.1.50.0080.0218.06
5.1.40.0020.0278.05
5.1.30.0050.0258.40
5.1.20.0050.0288.42
5.1.10.0020.0308.14
5.1.00.0030.0288.14
5.0.50.0050.0206.62
5.0.40.0030.0206.48
5.0.30.0020.0336.29
5.0.20.0020.0236.27
5.0.10.0050.0216.24
5.0.00.0060.0306.23
4.4.90.0010.0194.78
4.4.80.0060.0144.75
4.4.70.0030.0174.75
4.4.60.0030.0164.75
4.4.50.0030.0174.77
4.4.40.0060.0274.71
4.4.30.0070.0124.75
4.4.20.0010.0184.84
4.4.10.0020.0194.84
4.4.00.0040.0244.76
4.3.110.0020.0164.67
4.3.100.0050.0124.67
4.3.90.0020.0154.64
4.3.80.0020.0254.58
4.3.70.0030.0154.63
4.3.60.0030.0164.62
4.3.50.0020.0174.63
4.3.40.0050.0244.54
4.3.30.0030.0153.29
4.3.20.0020.0173.27
4.3.10.0030.0163.21
4.3.00.0100.0279.43

preferences:
139.48 ms | 1394 KiB | 7 Q