3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data[] = null; $data[] = 0; $data[] = 1; $data[] = true; $data[] = false; foreach($data as $value) { $result = is_null($value); echo "is_null ( ", var_export($value, true), " ) = ", var_export(is_null($value), true), " \n");}

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)
5.4.310.0020.04312.50
5.4.300.0070.03612.50
5.4.290.0070.03912.49
5.4.280.0070.03412.39
5.4.270.0060.03712.39
5.4.260.0070.03812.39
5.4.250.0070.04212.39
5.4.240.0120.04612.39
5.4.230.0080.04712.39
5.4.220.0080.04812.39
5.4.210.0050.03812.38
5.4.200.0090.03712.38
5.4.190.0080.04612.38
5.4.180.0080.05012.38
5.4.170.0160.04012.39
5.4.160.0090.04112.39
5.4.150.0040.04312.38
5.4.140.0060.03912.07
5.4.130.0060.04012.05
5.4.120.0050.03712.02
5.4.110.0070.03512.02
5.4.100.0040.03712.02
5.4.90.0040.04012.01
5.4.80.0090.03612.02
5.4.70.0040.03912.02
5.4.60.0090.03312.01
5.4.50.0070.04012.01
5.4.40.0090.03112.00
5.4.30.0020.03912.00
5.4.20.0060.03511.99
5.4.10.0050.03712.00
5.4.00.0060.03611.49
5.3.280.0110.03312.71
5.3.270.0080.04712.73
5.3.260.0050.05012.72
5.3.250.0050.04212.71
5.3.240.0090.04312.72
5.3.230.0080.04812.70
5.3.220.0060.04912.68
5.3.210.0060.04612.68
5.3.200.0040.05212.68
5.3.190.0100.04612.68
5.3.180.0140.04712.67
5.3.170.0060.03812.67
5.3.160.0030.04112.67
5.3.150.0090.03512.67
5.3.140.0070.04012.66
5.3.130.0110.04112.66
5.3.120.0060.05612.66
5.3.110.0140.03312.66
5.3.100.0060.03912.12
5.3.90.0080.03612.08
5.3.80.0070.03612.08
5.3.70.0060.03712.08
5.3.60.0110.03212.06
5.3.50.0140.04312.00
5.3.40.0090.04812.00
5.3.30.0070.03511.95
5.3.20.0060.04811.73
5.3.10.0100.04611.70
5.3.00.0080.04911.69
5.2.170.0060.0399.19
5.2.160.0060.0319.18
5.2.150.0020.0349.18
5.2.140.0090.0389.18
5.2.130.0040.0449.14
5.2.120.0070.0409.14
5.2.110.0100.0369.15
5.2.100.0070.0399.15
5.2.90.0060.0419.15
5.2.80.0060.0319.14
5.2.70.0050.0319.14
5.2.60.0060.0299.09
5.2.50.0050.0319.07
5.2.40.0080.0269.04
5.2.30.0030.0329.02
5.2.20.0050.0339.01
5.2.10.0030.0298.93
5.2.00.0060.0288.79
5.1.60.0090.0218.07
5.1.50.0020.0288.07
5.1.40.0050.0278.05
5.1.30.0070.0268.40
5.1.20.0030.0288.42
5.1.10.0040.0278.15
5.1.00.0040.0268.14
5.0.50.0060.0206.63
5.0.40.0040.0236.48
5.0.30.0050.0336.30
5.0.20.0030.0206.27
5.0.10.0080.0196.25
5.0.00.0060.0346.23
4.4.90.0030.0164.78
4.4.80.0010.0174.75
4.4.70.0020.0194.75
4.4.60.0050.0154.76
4.4.50.0010.0194.77
4.4.40.0030.0284.71
4.4.30.0020.0234.76
4.4.20.0020.0174.84
4.4.10.0030.0164.85
4.4.00.0030.0274.76
4.3.110.0050.0324.67
4.3.100.0080.0204.66
4.3.90.0050.0204.64
4.3.80.0030.0254.58
4.3.70.0020.0154.63
4.3.60.0070.0174.63
4.3.50.0030.0224.63
4.3.40.0040.0304.54
4.3.30.0040.0153.29
4.3.20.0040.0143.27
4.3.10.0020.0153.22
4.3.00.0200.01315.29

preferences:
138.48 ms | 1394 KiB | 7 Q