3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Test{ const ♥ = "love"; } $class = new ReflectionClass("Test"); $cname = "♥"; if ( $class->hasConstant( $cname ) ) { $bad_char = "♥"; if ( mb_strpos( $cname, $bad_char) ) { exit( "Illegal identifier: $bad_char" ); } }

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)
5.4.320.0060.03612.52
5.4.310.0040.03912.51
5.4.300.0080.03312.51
5.4.290.0040.03912.51
5.4.280.0110.03012.41
5.4.270.0070.03612.41
5.4.260.0050.03912.41
5.4.250.0050.03812.41
5.4.240.0080.03312.41
5.4.230.0080.03512.40
5.4.220.0090.03312.40
5.4.210.0010.04012.39
5.4.200.0040.03912.39
5.4.190.0060.03712.39
5.4.180.0050.03612.39
5.4.170.0050.03712.40
5.4.160.0040.03812.40
5.4.150.0040.03712.39
5.4.140.0030.04012.08
5.4.130.0050.03612.06
5.4.120.0050.03512.03
5.4.110.0050.03512.03
5.4.100.0050.03612.02
5.4.90.0070.03512.02
5.4.80.0070.03512.02
5.4.70.0040.03612.02
5.4.60.0060.04212.02
5.4.50.0070.03412.02
5.4.40.0030.03712.01
5.4.30.0040.03712.00
5.4.20.0030.03812.01
5.4.10.0050.03412.01
5.4.00.0060.03811.50
5.3.290.0040.04112.80
5.3.280.0040.03912.71
5.3.270.0050.03912.72
5.3.260.0070.03812.72
5.3.250.0060.03712.71
5.3.240.0080.03412.72
5.3.230.0070.03612.71
5.3.220.0070.03612.68
5.3.210.0060.04412.68
5.3.200.0050.03812.68
5.3.190.0040.03912.67
5.3.180.0050.03612.68
5.3.170.0060.03512.67
5.3.160.0050.03712.68
5.3.150.0080.03512.67
5.3.140.0040.04012.66
5.3.130.0110.04012.66
5.3.120.0080.03812.66
5.3.110.0070.04112.66
5.3.100.0100.03812.12
5.3.90.0060.03612.10
5.3.80.0020.04012.09
5.3.70.0060.03712.09
5.3.60.0060.03612.07
5.3.50.0060.03512.02
5.3.40.0030.04012.02
5.3.30.0060.03411.98
5.3.20.0080.03311.76
5.3.10.0050.04111.73
5.3.00.0040.03811.71
5.2.170.0040.0359.21
5.2.160.0020.0319.22
5.2.150.0050.0309.21
5.2.140.0070.0289.21
5.2.130.0040.0299.18
5.2.120.0030.0299.18
5.2.110.0050.0289.18
5.2.100.0050.0279.17
5.2.90.0040.0299.18
5.2.80.0050.0309.17
5.2.70.0070.0289.17
5.2.60.0060.0299.13
5.2.50.0020.0329.10
5.2.40.0020.0319.07
5.2.30.0050.0309.05
5.2.20.0050.0299.03
5.2.10.0070.0258.95
5.2.00.0080.0288.80
5.1.60.0060.0228.09
5.1.50.0040.0258.08
5.1.40.0070.0218.07
5.1.30.0050.0258.41
5.1.20.0060.0258.43
5.1.10.0070.0238.16
5.1.00.0060.0268.16
5.0.50.0050.0186.64
5.0.40.0030.0196.50
5.0.30.0030.0316.30
5.0.20.0070.0156.28
5.0.10.0050.0176.25
5.0.00.0040.0306.25
4.4.90.0050.0124.78
4.4.80.0020.0154.75
4.4.70.0030.0154.75
4.4.60.0040.0144.75
4.4.50.0020.0184.77
4.4.40.0020.0254.71
4.4.30.0040.0144.76
4.4.20.0030.0174.85
4.4.10.0030.0164.85
4.4.00.0060.0284.76
4.3.110.0050.0134.67
4.3.100.0030.0154.66
4.3.90.0020.0154.64
4.3.80.0020.0254.58
4.3.70.0020.0144.63
4.3.60.0030.0134.63
4.3.50.0030.0154.63
4.3.40.0020.0244.54
4.3.30.0050.0143.30
4.3.20.0000.0183.28
4.3.10.0030.0153.23
4.3.00.0000.0237.11

preferences:
142.18 ms | 1394 KiB | 7 Q