3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = u"string"; echo strlen($foo); echo $foo->length();

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)
5.4.350.0080.04712.01
5.4.340.0130.04112.01
5.4.320.0100.04512.50
5.4.310.0120.06212.50
5.4.300.0060.05512.50
5.4.290.0140.07412.49
5.4.280.0090.04612.39
5.4.270.0070.04312.39
5.4.260.0070.05512.39
5.4.250.0090.05012.39
5.4.240.0050.05212.39
5.4.230.0050.04212.38
5.4.220.0060.04012.38
5.4.210.0120.04712.38
5.4.200.0080.04712.38
5.4.190.0060.04112.38
5.4.180.0170.05112.38
5.4.170.0060.03912.39
5.4.160.0060.04212.38
5.4.150.0110.03712.38
5.4.140.0060.04312.07
5.4.130.0060.03812.05
5.4.120.0050.03712.02
5.4.110.0060.03512.01
5.4.100.0030.04012.01
5.4.90.0050.05412.01
5.4.80.0140.05512.01
5.4.70.0060.03912.00
5.4.60.0130.04312.01
5.4.50.0100.05112.01
5.4.40.0090.04212.00
5.4.30.0080.04711.99
5.4.20.0110.05811.99
5.4.10.0070.05511.99
5.4.00.0130.05711.49
5.3.290.0100.04312.80
5.3.280.0090.04912.71
5.3.270.0070.05812.72
5.3.260.0100.04612.72
5.3.250.0070.04612.72
5.3.240.0060.04512.72
5.3.230.0130.03512.70
5.3.220.0070.05312.68
5.3.210.0080.04612.68
5.3.200.0030.04312.68
5.3.190.0060.04112.68
5.3.180.0050.04212.68
5.3.170.0080.04012.67
5.3.160.0100.03612.68
5.3.150.0060.04112.67
5.3.140.0120.05512.66
5.3.130.0140.03912.66
5.3.120.0050.04312.66
5.3.110.0080.04012.66
5.3.100.0110.05812.12
5.3.90.0060.04412.08
5.3.80.0070.04312.07
5.3.70.0090.04712.07
5.3.60.0080.05112.06
5.3.50.0090.04612.00
5.3.40.0140.04212.00
5.3.30.0060.05611.95
5.3.20.0100.03711.72
5.3.10.0060.04311.70
5.3.00.0080.04711.68
5.2.170.0080.0499.18
5.2.160.0080.0369.18
5.2.150.0080.0369.18
5.2.140.0070.0329.18
5.2.130.0050.0349.14
5.2.120.0070.0279.14
5.2.110.0100.0449.15
5.2.100.0060.0369.14
5.2.90.0090.0389.14
5.2.80.0090.0379.14
5.2.70.0070.0349.14
5.2.60.0040.0329.09
5.2.50.0080.0319.06
5.2.40.0050.0409.03
5.2.30.0110.0509.02
5.2.20.0140.0429.00
5.2.10.0060.0368.93
5.2.00.0140.0578.78
5.1.60.0130.0538.07
5.1.50.0190.0558.06
5.1.40.0070.0328.05
5.1.30.0020.0358.40
5.1.20.0090.0288.42
5.1.10.0060.0318.14
5.1.00.0070.0388.14
5.0.50.0080.0266.62
5.0.40.0090.0316.48
5.0.30.0030.0426.29
5.0.20.0060.0216.27
5.0.10.0030.0276.24
5.0.00.0070.0586.23
4.4.90.0050.0224.78
4.4.80.0020.0404.75
4.4.70.0060.0194.75
4.4.60.0050.0204.75
4.4.50.0030.0164.77
4.4.40.0040.0264.71
4.4.30.0020.0184.76
4.4.20.0050.0164.84
4.4.10.0040.0194.85
4.4.00.0030.0294.76
4.3.110.0090.0374.67
4.3.100.0110.0344.66
4.3.90.0090.0174.63
4.3.80.0030.0344.59
4.3.70.0110.0244.63
4.3.60.0030.0144.63
4.3.50.0030.0184.63
4.3.40.0060.0584.54
4.3.30.0090.0323.29
4.3.20.0120.0603.26
4.3.10.0060.0573.21
4.3.00.0030.01312.82

preferences:
143.43 ms | 1394 KiB | 7 Q