3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = ''; $res = count($var); var_dump($res); if (count($var) > 0) { echo "yeah"; }else { echo "no"; } echo "\n\n"; $var = null; $res = count($var); var_dump($res); if (count($var) > 0) { 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)
8.3.40.0080.00818.76
8.3.30.0110.00318.73
8.3.20.0040.00420.24
8.3.10.0080.00023.53
8.3.00.0050.00319.12
8.2.170.0100.00722.96
8.2.160.0160.00322.05
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0070.00417.50
8.2.120.0000.00826.35
8.2.110.0030.00722.27
8.2.100.0080.00317.80
8.2.90.0040.00419.09
8.2.80.0050.00317.97
8.2.70.0030.00617.63
8.2.60.0040.00417.80
8.2.50.0000.00918.07
8.2.40.0040.00419.25
8.2.30.0030.00320.49
8.2.20.0000.00917.81
8.2.10.0070.00018.18
8.2.00.0040.00418.17
8.1.270.0040.00422.14
8.1.260.0040.00428.09
8.1.250.0090.00028.09
8.1.240.0000.00820.88
8.1.230.0080.00417.66
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0080.00017.13
8.1.180.0040.00418.10
8.1.170.0020.00520.23
8.1.160.0020.00522.06
8.1.150.0040.00418.90
8.1.140.0080.00019.57
8.1.130.0070.00017.71
8.1.120.0040.00417.36
8.1.110.0000.01017.42
8.1.100.0040.00417.47
8.1.90.0030.00317.43
8.1.80.0000.00717.43
8.1.70.0030.00317.40
8.1.60.0090.00017.56
8.1.50.0000.00817.42
8.1.40.0040.00417.36
8.1.30.0000.00817.55
8.1.20.0060.00317.62
8.1.10.0050.00217.40
8.1.00.0040.00417.52
8.0.300.0000.00818.77
8.0.290.0030.00616.75
8.0.280.0030.00318.36
8.0.270.0030.00317.25
8.0.260.0030.00317.23
8.0.250.0000.00717.01
8.0.240.0000.00716.96
8.0.230.0000.00716.96
8.0.220.0000.00816.93
8.0.210.0040.00416.94
8.0.200.0030.00316.94
8.0.190.0000.00716.91
8.0.180.0040.00416.97
8.0.170.0030.00516.85
8.0.160.0070.00016.97
8.0.150.0000.00716.88
8.0.140.0000.00716.84
8.0.130.0030.00313.41
8.0.120.0080.00016.95
8.0.110.0070.00016.86
8.0.100.0000.00716.92
8.0.90.0040.00416.96
8.0.80.0060.01616.95
8.0.70.0000.00816.90
8.0.60.0070.00017.04
8.0.50.0000.00716.93
8.0.30.0080.00817.03
8.0.20.0120.00717.40
8.0.10.0030.00516.97
8.0.00.0060.01216.86
7.4.330.0020.00216.84
7.4.320.0000.00616.36
7.4.300.0060.00016.48
7.4.290.0000.00616.54
7.4.280.0000.00816.56
7.4.270.0070.00016.61
7.4.260.0000.00816.57
7.4.250.0050.00316.45
7.4.240.0020.00616.53
7.4.230.0070.00016.55
7.4.220.0070.01316.43
7.4.210.0060.00916.62
7.4.200.0000.00716.60
7.4.160.0110.00816.41
7.4.150.0030.01317.40
7.4.140.0160.01817.86
7.4.130.0120.00916.69
7.4.120.0100.00716.48
7.4.110.0140.00316.58
7.4.100.0070.01016.73
7.4.90.0040.01316.70
7.4.80.0170.00319.39
7.4.70.0070.01716.66
7.4.60.0130.00416.59
7.4.50.0070.01116.42
7.4.40.0060.01016.51
7.4.30.0060.01116.62
7.4.00.0040.01215.11
7.3.330.0000.00513.17
7.3.320.0070.00013.21
7.3.310.0000.00716.16
7.3.300.0000.00616.24
7.3.290.0090.00716.36
7.3.280.0110.00916.31
7.3.270.0070.01117.40
7.3.260.0100.00916.30
7.3.240.0090.00816.39
7.3.230.0110.00616.49
7.3.210.0120.00416.33
7.3.200.0110.00616.64
7.3.190.0170.00016.43
7.3.180.0120.00416.35
7.3.170.0060.01116.48
7.3.160.0110.00516.38
7.3.10.0080.00416.59
7.3.00.0070.00716.78
7.2.330.0030.01316.38
7.2.320.0060.01316.69
7.2.310.0040.01216.57
7.2.300.0090.00916.68
7.2.290.0150.00316.43
7.2.130.0070.00716.71
7.2.120.0040.01117.02
7.2.110.0090.00017.03
7.2.100.0030.00716.68
7.2.90.0000.01416.96
7.2.80.0000.01016.78
7.2.70.0040.00417.05
7.2.60.0090.00416.78
7.2.50.0060.00617.07
7.2.40.0030.00616.93
7.2.30.0090.00617.04
7.2.20.0000.01217.02
7.2.10.0070.00717.08
7.2.00.0070.00518.00
7.1.250.0030.00715.63
7.1.200.0040.00815.68
7.1.100.0030.01118.15
7.1.70.0000.00817.17
7.1.60.0100.01319.48
7.1.50.0080.01216.90
7.1.00.0030.07722.43
7.0.200.0310.00414.61
7.0.60.0070.06319.86
7.0.50.0030.05317.88
7.0.40.0100.04320.40
7.0.30.0200.08320.34
7.0.20.0300.09019.99
7.0.10.0030.04320.16
7.0.00.0070.08320.04
5.6.280.0030.05721.10
5.6.210.0000.06720.71
5.6.200.0000.04318.18
5.6.190.0030.08720.49
5.6.180.0170.04320.56
5.6.170.0400.07720.38
5.6.160.0100.08020.48
5.6.150.0230.03718.17
5.6.140.0030.08018.05
5.6.130.0030.09018.05
5.6.120.0100.04721.04
5.6.110.0000.09321.00
5.6.100.0100.07321.13
5.6.90.0000.04320.97
5.6.80.0070.06020.40
5.5.350.4370.04320.41
5.5.340.0200.06717.92
5.5.330.0130.08320.57
5.5.320.0170.04720.31
5.5.310.0330.04720.07
5.5.300.0070.08317.93
5.5.290.0100.07717.94
5.5.280.0030.06020.80
5.5.270.0030.04020.80
5.5.260.0070.06320.63
5.5.250.0130.07020.77
5.5.240.0070.03720.07

preferences:
47.44 ms | 400 KiB | 5 Q