3v4l.org

run code in 300+ PHP versions simultaneously
<?php function concatenate($transform, ...$strings) { $string = ''; 1foreach($strings as $piece) { $string .= $piece; } return($transform($string)); } echo concatenate("strtoupper", "I'd ", "like ", 4 + 2, " apples");

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)
5.4.320.0050.04812.52
5.4.310.0060.03712.51
5.4.300.0050.03712.52
5.4.290.0040.04012.51
5.4.280.0070.03312.40
5.4.270.0070.03412.41
5.4.260.0040.03812.41
5.4.250.0080.03412.41
5.4.240.0050.03612.41
5.4.230.0050.03812.39
5.4.220.0050.03612.39
5.4.210.0050.03612.40
5.4.200.0040.03912.40
5.4.190.0080.03312.39
5.4.180.0060.03512.39
5.4.170.0030.03812.40
5.4.160.0060.03512.39
5.4.150.0040.03712.39
5.4.140.0020.03912.08
5.4.130.0060.03812.06
5.4.120.0040.03512.03
5.4.110.0060.03812.03
5.4.100.0070.03812.03
5.4.90.0050.03612.02
5.4.80.0040.03712.02
5.4.70.0030.03712.02
5.4.60.0060.03312.02
5.4.50.0070.03312.02
5.4.40.0100.03012.01
5.4.30.0060.03412.00
5.4.20.0050.04212.00
5.4.10.0040.03712.01
5.4.00.0030.03811.50
5.3.290.0080.04112.80
5.3.280.0060.05012.71
5.3.270.0030.04112.73
5.3.260.0020.04212.72
5.3.250.0070.03512.72
5.3.240.0080.03412.71
5.3.230.0060.03712.71
5.3.220.0040.03812.68
5.3.210.0060.03812.68
5.3.200.0030.03912.68
5.3.190.0030.04112.68
5.3.180.0060.03612.67
5.3.170.0070.03412.67
5.3.160.0060.03512.67
5.3.150.0050.03812.67
5.3.140.0070.03812.66
5.3.130.0060.03812.66
5.3.120.0070.03712.65
5.3.110.0060.03812.65
5.3.100.0040.04212.13
5.3.90.0090.03712.11
5.3.80.0070.03612.09
5.3.70.0040.04112.09
5.3.60.0060.03412.08
5.3.50.0060.03512.02
5.3.40.0040.03812.02
5.3.30.0080.03411.98
5.3.20.0070.03411.77
5.3.10.0080.04311.74
5.3.00.0050.04311.71
5.2.170.0020.0339.22
5.2.160.0050.0289.21
5.2.150.0040.0319.22
5.2.140.0040.0319.21
5.2.130.0040.0339.17
5.2.120.0040.0309.17
5.2.110.0080.0259.18
5.2.100.0040.0299.18
5.2.90.0050.0299.18
5.2.80.0060.0339.18
5.2.70.0040.0309.17
5.2.60.0030.0309.12
5.2.50.0060.0279.09
5.2.40.0040.0289.07
5.2.30.0030.0309.05
5.2.20.0050.0289.04
5.2.10.0050.0288.95
5.2.00.0030.0308.81
5.1.60.0040.0248.09
5.1.50.0080.0248.08
5.1.40.0030.0278.06
5.1.30.0050.0258.42
5.1.20.0040.0278.44
5.1.10.0050.0288.16
5.1.00.0060.0248.16
5.0.50.0030.0226.64
5.0.40.0030.0216.50
5.0.30.0030.0326.31
5.0.20.0050.0266.29
5.0.10.0050.0206.25
5.0.00.0020.0316.24
4.4.90.0020.0154.78
4.4.80.0030.0144.76
4.4.70.0020.0164.75
4.4.60.0000.0184.75
4.4.50.0030.0144.77
4.4.40.0030.0254.71
4.4.30.0040.0184.76
4.4.20.0030.0164.84
4.4.10.0020.0194.85
4.4.00.0020.0284.76
4.3.110.0050.0134.66
4.3.100.0010.0174.66
4.3.90.0020.0154.63
4.3.80.0040.0234.58
4.3.70.0040.0144.63
4.3.60.0030.0144.63
4.3.50.0020.0164.63
4.3.40.0020.0274.54
4.3.30.0010.0203.30
4.3.20.0020.0163.29
4.3.10.0010.0163.24
4.3.00.0030.0207.11

preferences:
143.89 ms | 1394 KiB | 7 Q