3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = ''; $res = count($var); var_dump($res); if (count($var) > 1) { echo "yeah"; }else { echo "no"; } echo "\n\n"; $var = null; $res = count($var); var_dump($res); if (count($var) > 1) { echo "yeah"; }else { echo "no"; }

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)
8.3.70.0070.00716.88
8.3.60.0030.01116.63
8.3.50.0200.00621.93
8.3.40.0110.00418.54
8.3.30.0070.00718.75
8.3.20.0040.00420.29
8.3.10.0000.00923.57
8.3.00.0050.00319.25
8.2.190.0040.01118.41
8.2.180.0090.01218.57
8.2.170.0000.01422.96
8.2.160.0030.01722.13
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00317.38
8.2.120.0000.00726.35
8.2.110.0040.00420.38
8.2.100.0000.01117.93
8.2.90.0040.00419.09
8.2.80.0000.00817.97
8.2.70.0060.00317.50
8.2.60.0000.00817.90
8.2.50.0040.00418.07
8.2.40.0040.00419.34
8.2.30.0050.00320.56
8.2.20.0090.00017.68
8.2.10.0040.00418.00
8.2.00.0040.00418.04
8.1.280.0070.01025.92
8.1.270.0040.00422.19
8.1.260.0040.00428.09
8.1.250.0050.00328.09
8.1.240.0070.00320.69
8.1.230.0090.00317.64
8.1.220.0040.00417.78
8.1.210.0040.00418.77
8.1.200.0050.00517.23
8.1.190.0080.00017.22
8.1.180.0080.00018.10
8.1.170.0020.00520.24
8.1.160.0040.00421.92
8.1.150.0000.00718.75
8.1.140.0040.00419.57
8.1.130.0040.00417.74
8.1.120.0000.00717.35
8.1.110.0060.00317.49
8.1.100.0040.00417.45
8.1.90.0050.00217.38
8.1.80.0050.00217.34
8.1.70.0050.00217.38
8.1.60.0090.00317.55
8.1.50.0040.00417.44
8.1.40.0040.00417.43
8.1.30.0040.00417.55
8.1.20.0080.00017.66
8.1.10.0050.00217.45
8.1.00.0030.00517.54
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0030.00318.25
8.0.270.0020.00517.11
8.0.260.0080.00017.19
8.0.250.0040.00416.99
8.0.240.0000.00716.91
8.0.230.0000.00716.96
8.0.220.0000.00716.90
8.0.210.0000.00716.89
8.0.200.0000.00816.93
8.0.190.0040.00416.94
8.0.180.0040.00416.82
8.0.170.0040.00416.97
8.0.160.0000.00716.92
8.0.150.0070.00016.80
8.0.140.0000.00716.86
8.0.130.0000.00613.34
8.0.120.0000.00816.81
8.0.110.0030.00416.94
8.0.100.0030.00516.76
8.0.90.0040.00416.80
8.0.80.0070.01017.01
8.0.70.0050.00317.06
8.0.60.0040.00416.89
8.0.50.0080.00016.76
8.0.30.0050.01017.07
8.0.20.0110.00917.40
8.0.10.0050.00316.89
8.0.00.0140.00716.70
7.4.330.0060.00016.69
7.4.320.0040.00416.57
7.4.300.0070.00016.56
7.4.290.0000.00816.60
7.4.280.0000.00716.59
7.4.270.0040.00416.49
7.4.260.0000.00816.41
7.4.250.0000.00716.50
7.4.240.0070.00016.43
7.4.230.0000.00716.34
7.4.220.0100.01316.61
7.4.210.0040.01116.60
7.4.200.0040.00416.41
7.4.160.0040.01116.55
7.4.150.0090.00917.40
7.4.140.0110.02117.86
7.4.130.0050.01216.53
7.4.120.0080.00916.62
7.4.110.0100.00716.31
7.4.100.0060.01516.44
7.4.90.0130.01116.43
7.4.80.0070.01019.39
7.4.70.0050.01416.39
7.4.60.0060.01616.45
7.4.50.0110.00816.46
7.4.40.0110.00616.56
7.4.30.0040.01216.49
7.4.00.0070.01015.13
7.3.330.0020.00213.17
7.3.320.0040.00413.11
7.3.310.0070.00016.38
7.3.300.0070.00016.34
7.3.290.0080.00716.33
7.3.280.0090.00816.35
7.3.270.0170.00017.40
7.3.260.0110.00716.36
7.3.250.0110.00816.36
7.3.240.0120.00816.31
7.3.230.0130.00916.46
7.3.210.0120.00616.38
7.3.200.0120.00616.50
7.3.190.0000.01616.26
7.3.180.0100.00716.38
7.3.170.0120.00916.32
7.3.160.0060.00916.33
7.2.330.0120.00616.64
7.2.320.0120.01216.73
7.2.310.0160.00016.36
7.2.300.0080.01416.71
7.2.290.0120.00616.65
7.2.60.0040.00416.89
7.2.00.0030.01219.39
7.1.200.0070.00715.80
7.1.100.0040.00718.14
7.1.70.0040.00416.80
7.1.60.0090.01519.48
7.1.50.0000.01116.57
7.1.00.0030.07722.31
7.0.200.0370.00714.57
7.0.60.0000.04720.02
7.0.50.0070.06017.89
7.0.40.0130.06320.09
7.0.30.0270.08020.09
7.0.20.0300.07720.09
7.0.10.0070.09020.17
7.0.00.0000.06720.00
5.6.280.0030.04320.84
5.6.210.0070.04720.62
5.6.200.0070.07318.19
5.6.190.0070.06020.39
5.6.180.0100.05020.33
5.6.170.0230.04020.49
5.6.160.0100.08020.37
5.6.150.0030.09018.09
5.6.140.0130.05318.21
5.6.130.0070.08318.21
5.6.120.0030.07720.98
5.6.110.0100.06020.99
5.6.100.0070.08321.04
5.6.90.0030.06321.12
5.6.80.0200.05020.40
5.5.350.3800.03720.31
5.5.340.0100.04017.96
5.5.330.0070.04320.32
5.5.320.0230.04720.22
5.5.310.0230.07320.28
5.5.300.0070.07317.89
5.5.290.0070.08317.88
5.5.280.0000.06020.96
5.5.270.0070.04020.89
5.5.260.0170.07320.79
5.5.250.0070.08320.61
5.5.240.0100.03320.26

preferences:
62.22 ms | 401 KiB | 5 Q