3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = " "; if (empty($str)) { print 'expected'; } else { print 'not expected'; }

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)
8.3.60.0120.00818.43
8.3.50.0260.00821.14
8.3.40.0090.00918.75
8.3.30.0100.00318.42
8.3.20.0030.00518.54
8.3.10.0030.00619.57
8.3.00.0050.00520.92
8.2.180.0120.00318.44
8.2.170.0140.00322.96
8.2.160.0110.00319.16
8.2.150.0080.00024.18
8.2.140.0050.00224.66
8.2.130.0040.00421.12
8.2.120.0040.00426.35
8.2.110.0040.00720.56
8.2.100.0060.00617.91
8.2.90.0040.00719.22
8.2.80.0050.00317.97
8.2.70.0030.00617.63
8.2.60.0000.00717.93
8.2.50.0040.00418.10
8.2.40.0030.00520.60
8.2.30.0040.00420.61
8.2.20.0070.00017.52
8.2.10.0070.00017.91
8.2.00.0030.00618.02
8.1.280.0120.00925.92
8.1.270.0000.00823.60
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0060.00619.19
8.1.230.0070.00417.52
8.1.220.0030.00517.74
8.1.210.0000.00818.77
8.1.200.0040.00417.13
8.1.190.0040.00417.10
8.1.180.0040.00418.10
8.1.170.0080.00018.51
8.1.160.0080.00019.00
8.1.150.0000.00718.69
8.1.140.0030.00319.49
8.1.130.0040.00417.59
8.1.120.0070.00017.39
8.1.110.0040.00417.28
8.1.100.0000.00717.40
8.1.90.0000.00717.31
8.1.80.0040.00417.31
8.1.70.0030.00317.29
8.1.60.0000.00817.52
8.1.50.0050.00317.37
8.1.40.0000.00817.45
8.1.30.0040.00417.59
8.1.20.0030.00617.41
8.1.10.0070.00017.35
8.1.00.0050.00317.39
8.0.300.0080.00018.77
8.0.290.0090.00016.63
8.0.280.0050.00218.44
8.0.270.0050.00317.16
8.0.260.0000.00717.14
8.0.250.0030.00316.76
8.0.240.0000.00616.76
8.0.230.0070.00016.91
8.0.220.0030.00616.75
8.0.210.0030.00316.82
8.0.200.0000.00816.77
8.0.190.0040.00416.85
8.0.180.0040.00416.80
8.0.170.0020.00516.75
8.0.160.0070.00016.83
8.0.150.0000.00716.75
8.0.140.0000.00716.81
8.0.130.0030.00313.23
8.0.120.0040.00416.81
8.0.110.0040.00416.82
8.0.100.0040.00416.85
8.0.90.0000.00716.62
8.0.80.0060.01316.80
8.0.70.0040.00416.87
8.0.60.0000.00716.77
8.0.50.0000.00716.83
8.0.30.0110.00617.06
8.0.20.0120.00817.40
8.0.10.0040.00416.93
8.0.00.0130.00916.65
7.4.330.0020.00215.08
7.4.320.0000.00616.32
7.4.300.0030.00316.44
7.4.290.0000.00716.48
7.4.280.0070.00016.32
7.4.270.0030.00416.45
7.4.260.0030.00316.55
7.4.250.0040.00416.51
7.4.240.0030.00316.49
7.4.230.0030.00316.47
7.4.220.0120.00616.60
7.4.210.0000.01616.47
7.4.200.0040.00416.57
7.4.160.0040.01116.43
7.4.150.0140.00617.40
7.4.140.0080.01317.86
7.4.130.0080.01016.59
7.4.120.0050.01216.44
7.4.110.0100.01016.31
7.4.100.0120.00616.46
7.4.90.0070.01016.36
7.4.80.0160.00619.39
7.4.70.0080.00916.34
7.4.60.0060.01016.53
7.4.50.0100.00316.46
7.4.40.0030.01316.55
7.4.30.0130.00316.44
7.4.00.0030.01015.12
7.3.330.0020.00213.04
7.3.320.0050.00012.88
7.3.310.0070.00016.07
7.3.300.0040.00416.14
7.3.290.0070.01016.12
7.3.280.0040.01216.10
7.3.270.0150.00417.40
7.3.260.0100.00716.17
7.3.250.0130.01016.26
7.3.240.0130.00316.16
7.3.230.0080.00816.39
7.3.210.0100.00716.34
7.3.200.0060.00916.36
7.3.190.0040.01116.44
7.3.180.0000.01516.05
7.3.170.0070.01016.38
7.3.160.0130.00316.16
7.2.330.0150.00616.36
7.2.320.0070.01616.52
7.2.310.0090.00916.50
7.2.300.0080.01216.55
7.2.290.0030.01616.29
7.2.00.0000.01018.96
7.1.200.0040.01115.57
7.1.100.0030.00917.75
7.1.70.0000.00816.77
7.1.60.0090.00920.41
7.1.00.0030.07722.25
7.0.200.0110.00816.38
7.0.60.0170.07021.66
7.0.50.0330.05020.38
7.0.40.0200.05720.29
7.0.30.0170.06320.34
7.0.20.0370.07020.33
7.0.10.0170.06020.34
7.0.00.0170.06020.35
5.6.280.0000.07721.14
5.6.210.0170.07720.60
5.6.200.0000.04318.23
5.6.190.0300.04721.14
5.6.180.0100.06721.15
5.6.170.0200.07721.05
5.6.160.0130.06021.18
5.6.150.0200.06021.18
5.6.140.0070.06721.09
5.6.130.0130.06321.14
5.6.120.0170.05721.09
5.6.110.0230.07321.14
5.6.100.0370.06021.00
5.6.90.0430.05021.09
5.6.80.0330.06020.51
5.6.70.0170.06020.36
5.6.60.0270.05720.29
5.6.50.0270.05720.57
5.6.40.0270.07720.51
5.6.30.0430.04720.37
5.6.20.0230.06320.39
5.6.10.0270.06020.48
5.6.00.0270.05720.42
5.5.350.0330.06320.52
5.5.340.0030.04717.98
5.5.330.0200.06020.86
5.5.320.0270.05320.69
5.5.310.0200.06020.82
5.5.300.0230.05020.87
5.5.290.0030.07020.84
5.5.280.0170.07020.90
5.5.270.0130.07020.98
5.5.260.0230.05320.99
5.5.250.0330.06320.64
5.5.240.0470.06720.28
5.5.230.0130.05720.21
5.5.220.0300.04320.40
5.5.210.0300.06020.25
5.5.200.0330.05020.28
5.5.190.0400.04720.22
5.5.180.0370.05320.20
5.5.160.0200.06020.21
5.5.150.0170.05320.35
5.5.140.0230.05020.22
5.5.130.0170.05320.22
5.5.120.0170.05720.32
5.5.110.0200.05320.18
5.5.100.0100.06020.12
5.5.90.0230.04319.93
5.5.80.0170.05320.21
5.5.70.0130.06020.14
5.5.60.0130.05320.08
5.5.50.0170.05320.15
5.5.40.0170.05020.11
5.5.30.0130.05720.23
5.5.20.0200.05020.14
5.5.10.0130.05720.23
5.5.00.0070.06320.07

preferences:
64.69 ms | 401 KiB | 5 Q