3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "0"; $b = "0.0";var_dump( $a == $b ); // true var_dump( empty( $a ) ); // false

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)
5.4.310.0070.04012.49
5.4.300.0060.04012.50
5.4.290.0040.03912.49
5.4.280.0050.03612.39
5.4.270.0090.03812.39
5.4.260.0070.03712.39
5.4.250.0070.03712.39
5.4.240.0040.03912.39
5.4.230.0060.03812.38
5.4.220.0080.03512.38
5.4.210.0020.04012.38
5.4.200.0080.03812.38
5.4.190.0060.03812.38
5.4.180.0070.03712.38
5.4.170.0070.03512.38
5.4.160.0030.04112.38
5.4.150.0030.04012.38
5.4.140.0030.04112.07
5.4.130.0080.03412.05
5.4.120.0110.04112.02
5.4.110.0020.04012.01
5.4.100.0040.03712.01
5.4.90.0090.03312.01
5.4.80.0040.05112.01
5.4.70.0060.04612.00
5.4.60.0070.03612.01
5.4.50.0050.03612.01
5.4.40.0060.03411.99
5.4.30.0140.04211.99
5.4.20.0060.05311.98
5.4.10.0060.04011.99
5.4.00.0050.03811.48
5.3.290.0050.04312.80
5.3.280.0050.04112.71
5.3.270.0050.04112.72
5.3.260.0090.03612.72
5.3.250.0080.03912.72
5.3.240.0050.03912.72
5.3.230.0070.04412.70
5.3.220.0100.03412.68
5.3.210.0060.04212.68
5.3.200.0050.03912.68
5.3.190.0070.04012.67
5.3.180.0030.04212.67
5.3.170.0070.04612.67
5.3.160.0060.03912.67
5.3.150.0050.03812.68
5.3.140.0040.03912.66
5.3.130.0070.03812.66
5.3.120.0070.04312.66
5.3.110.0080.03712.66
5.3.100.0030.04012.12
5.3.90.0040.03912.08
5.3.80.0050.03812.08
5.3.70.0100.03312.07
5.3.60.0050.04012.07
5.3.50.0080.03412.00
5.3.40.0090.03712.00
5.3.30.0090.03211.95
5.3.20.0070.03511.72
5.3.10.0050.03711.70
5.3.00.0070.03811.68
5.2.170.0060.0319.18
5.2.160.0100.0309.18
5.2.150.0090.0289.18
5.2.140.0060.0329.18
5.2.130.0070.0299.14
5.2.120.0090.0349.14
5.2.110.0030.0319.14
5.2.100.0060.0299.14
5.2.90.0060.0299.14
5.2.80.0050.0419.13
5.2.70.0060.0319.14
5.2.60.0040.0319.09
5.2.50.0050.0329.05
5.2.40.0050.0299.04
5.2.30.0030.0319.01
5.2.20.0060.0279.00
5.2.10.0060.0278.93
5.2.00.0050.0308.78
5.1.60.0050.0248.07
5.1.50.0050.0248.06
5.1.40.0030.0268.05
5.1.30.0050.0268.40
5.1.20.0050.0288.42
5.1.10.0040.0268.14
5.1.00.0030.0278.14
5.0.50.0050.0206.62
5.0.40.0060.0266.48
5.0.30.0030.0336.29
5.0.20.0050.0176.26
5.0.10.0040.0206.24
5.0.00.0060.0296.23
4.4.90.0010.0174.78
4.4.80.0040.0164.75
4.4.70.0040.0154.75
4.4.60.0020.0164.76
4.4.50.0040.0144.77
4.4.40.0010.0294.71
4.4.30.0040.0144.76
4.4.20.0020.0174.85
4.4.10.0040.0144.85
4.4.00.0050.0264.76
4.3.110.0040.0154.67
4.3.100.0050.0134.67
4.3.90.0010.0164.64
4.3.80.0040.0244.58
4.3.70.0040.0134.63
4.3.60.0040.0134.63
4.3.50.0020.0174.63
4.3.40.0020.0254.54
4.3.30.0010.0173.28
4.3.20.0040.0153.26
4.3.10.0020.0163.22
4.3.00.0030.0207.56

preferences:
143.52 ms | 1394 KiB | 7 Q