3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "defaultString";  return ucfirst($str);

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)
5.4.320.0050.04112.50
5.4.310.0100.03312.50
5.4.300.0090.03212.50
5.4.290.0020.04012.49
5.4.280.0050.03512.39
5.4.270.0090.03212.39
5.4.260.0070.03512.39
5.4.250.0090.03412.39
5.4.240.0090.03712.39
5.4.230.0060.04012.38
5.4.220.0060.03712.38
5.4.210.0090.03112.38
5.4.200.0070.03612.38
5.4.190.0100.03112.38
5.4.180.0050.04012.38
5.4.170.0060.03612.39
5.4.160.0080.03912.38
5.4.150.0090.03212.38
5.4.140.0060.04312.07
5.4.130.0070.03312.05
5.4.120.0070.03512.02
5.4.110.0060.04412.01
5.4.100.0050.04312.01
5.4.90.0090.03512.01
5.4.80.0070.04112.01
5.4.70.0050.04212.01
5.4.60.0040.03712.01
5.4.50.0040.04112.00
5.4.40.0080.03312.00
5.4.30.0040.03711.99
5.4.20.0090.03711.99
5.4.10.0060.03411.99
5.4.00.0050.03711.48
5.3.290.0030.04412.80
5.3.280.0050.03812.71
5.3.270.0060.04012.72
5.3.260.0050.04112.72
5.3.250.0100.03912.72
5.3.240.0070.03512.71
5.3.230.0050.03712.71
5.3.220.0060.03712.68
5.3.210.0070.03712.68
5.3.200.0070.03412.68
5.3.190.0080.04112.68
5.3.180.0080.03312.68
5.3.170.0070.03512.67
5.3.160.0060.03612.68
5.3.150.0040.04012.67
5.3.140.0060.03812.66
5.3.130.0060.04012.66
5.3.120.0070.03812.66
5.3.110.0100.03512.66
5.3.100.0080.03612.12
5.3.90.0050.03912.09
5.3.80.0070.03512.08
5.3.70.0050.04312.07
5.3.60.0070.04212.06
5.3.50.0030.04412.00
5.3.40.0060.03412.00
5.3.30.0080.03811.95
5.3.20.0070.03511.72
5.3.10.0060.03311.70
5.3.00.0070.03311.68
5.2.170.0060.0329.18
5.2.160.0030.0309.19
5.2.150.0070.0279.18
5.2.140.0060.0299.18
5.2.130.0040.0309.14
5.2.120.0050.0279.14
5.2.110.0050.0289.14
5.2.100.0040.0299.14
5.2.90.0030.0309.14
5.2.80.0050.0289.14
5.2.70.0090.0329.14
5.2.60.0050.0319.09
5.2.50.0060.0349.06
5.2.40.0040.0289.04
5.2.30.0030.0309.02
5.2.20.0030.0299.00
5.2.10.0010.0358.93
5.2.00.0080.0268.78
5.1.60.0080.0228.06
5.1.50.0020.0268.06
5.1.40.0080.0278.05
5.1.30.0050.0298.40
5.1.20.0050.0298.41
5.1.10.0050.0288.14
5.1.00.0060.0278.14
5.0.50.0020.0266.63
5.0.40.0020.0266.48
5.0.30.0020.0326.29
5.0.20.0040.0206.27
5.0.10.0040.0196.24
5.0.00.0040.0356.23
4.4.90.0030.0184.77
4.4.80.0020.0194.75
4.4.70.0000.0184.75
4.4.60.0020.0154.75
4.4.50.0010.0244.77
4.4.40.0010.0274.71
4.4.30.0030.0154.75
4.4.20.0020.0164.84
4.4.10.0000.0174.85
4.4.00.0020.0254.76
4.3.110.0020.0164.67
4.3.100.0010.0164.66
4.3.90.0010.0164.64
4.3.80.0030.0264.58
4.3.70.0020.0154.63
4.3.60.0010.0164.63
4.3.50.0040.0144.63
4.3.40.0020.0244.54
4.3.30.0000.0203.29
4.3.20.0020.0153.26
4.3.10.0020.0163.21
4.3.00.0000.01715.97

preferences:
145.76 ms | 1394 KiB | 7 Q