3v4l.org

run code in 300+ PHP versions simultaneously
;<?php namespace Whatever; $dateString = null if ($dateString instanceof DateTimeInterface) { echo "interface"; }

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)
5.4.320.0120.03312.46
5.4.310.0130.04112.46
5.4.300.0060.04012.46
5.4.290.0080.03712.46
5.4.280.0050.04012.36
5.4.270.0030.05012.36
5.4.260.0120.04212.36
5.4.250.0100.04912.36
5.4.240.0080.03912.36
5.4.230.0070.04412.35
5.4.220.0020.04212.35
5.4.210.0050.04012.35
5.4.200.0100.03712.35
5.4.190.0080.03812.34
5.4.180.0060.03512.35
5.4.170.0070.03512.36
5.4.160.0060.03812.36
5.4.150.0030.04012.35
5.4.140.0060.03612.04
5.4.130.0040.03712.02
5.4.120.0050.03611.98
5.4.110.0070.03811.98
5.4.100.0100.03711.98
5.4.90.0030.04211.98
5.4.80.0060.03711.98
5.4.70.0070.03211.97
5.4.60.0040.03511.97
5.4.50.0070.03811.97
5.4.40.0070.03611.96
5.4.30.0090.03311.96
5.4.20.0080.03311.96
5.4.10.0080.03211.96
5.4.00.0070.04611.45
5.3.290.0090.04612.80
5.3.280.0070.03712.70
5.3.270.0070.04812.72
5.3.260.0120.03512.72
5.3.250.0070.03712.72
5.3.240.0120.04912.72
5.3.230.0060.03912.71
5.3.220.0060.04112.68
5.3.210.0050.04312.68
5.3.200.0060.03612.68
5.3.190.0090.03412.68
5.3.180.0050.03712.67
5.3.170.0050.03812.67
5.3.160.0050.04212.68
5.3.150.0070.03612.68
5.3.140.0060.03612.66
5.3.130.0080.03612.65
5.3.120.0060.04312.66
5.3.110.0060.03812.66
5.3.100.0070.03512.12
5.3.90.0090.03212.08
5.3.80.0060.04312.08
5.3.70.0070.03512.07
5.3.60.0070.03512.06
5.3.50.0070.03512.00
5.3.40.0060.03712.00
5.3.30.0020.03811.94
5.3.20.0040.03711.73
5.3.10.0070.03711.69
5.3.00.0040.03811.67
5.2.170.0070.0349.18
5.2.160.0040.0319.18
5.2.150.0020.0389.18
5.2.140.0070.0299.17
5.2.130.0020.0379.14
5.2.120.0050.0289.13
5.2.110.0040.0299.14
5.2.100.0040.0299.14
5.2.90.0040.0299.14
5.2.80.0050.0299.14
5.2.70.0030.0319.14
5.2.60.0050.0349.09
5.2.50.0040.0409.06
5.2.40.0040.0299.04
5.2.30.0030.0349.01
5.2.20.0040.0299.01
5.2.10.0040.0288.93
5.2.00.0090.0278.78
5.1.60.0060.0228.06
5.1.50.0060.0238.06
5.1.40.0020.0268.05
5.1.30.0050.0248.40
5.1.20.0020.0288.42
5.1.10.0070.0238.14
5.1.00.0050.0248.14
5.0.50.0050.0186.63
5.0.40.0040.0186.48
5.0.30.0020.0326.29
5.0.20.0030.0206.26
5.0.10.0060.0166.24
5.0.00.0010.0326.23
4.4.90.0020.0164.78
4.4.80.0020.0154.76
4.4.70.0030.0154.75
4.4.60.0020.0164.75
4.4.50.0050.0134.77
4.4.40.0030.0254.70
4.4.30.0010.0174.76
4.4.20.0050.0134.84
4.4.10.0040.0184.85
4.4.00.0030.0254.76
4.3.110.0030.0154.67
4.3.100.0020.0154.66
4.3.90.0000.0174.64
4.3.80.0020.0244.58
4.3.70.0040.0134.63
4.3.60.0010.0164.63
4.3.50.0050.0134.63
4.3.40.0030.0234.54
4.3.30.0030.0153.28
4.3.20.0030.0153.26
4.3.10.0020.0233.21
4.3.00.0330.02315.62

preferences:
135.04 ms | 1394 KiB | 7 Q