3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = ""; print empty($var) ? 'true' : '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)
8.3.60.0150.00316.38
8.3.50.0090.00921.99
8.3.40.0070.01118.59
8.3.30.0100.00318.36
8.3.20.0040.00420.04
8.3.10.0030.00623.65
8.3.00.0060.00319.25
8.2.180.0100.00718.04
8.2.170.0060.01122.96
8.2.160.0140.00020.45
8.2.150.0080.00024.18
8.2.140.0030.00524.66
8.2.130.0000.00820.39
8.2.120.0070.00026.35
8.2.110.0000.00919.41
8.2.100.0090.00317.63
8.2.90.0000.00719.27
8.2.80.0030.00517.97
8.2.70.0050.00317.50
8.2.60.0090.00018.04
8.2.50.0060.00318.07
8.2.40.0040.00419.31
8.2.30.0030.00620.60
8.2.20.0040.00417.71
8.2.10.0040.00417.86
8.2.00.0070.00017.91
8.1.280.0100.00325.92
8.1.270.0090.00023.80
8.1.260.0050.00328.09
8.1.250.0040.00428.09
8.1.240.0070.00319.14
8.1.230.0130.00317.42
8.1.220.0040.00417.77
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0030.00517.64
8.1.180.0000.00818.10
8.1.170.0050.00318.50
8.1.160.0030.00521.93
8.1.150.0070.00018.85
8.1.140.0040.00419.49
8.1.130.0070.00017.58
8.1.120.0040.00417.30
8.1.110.0030.00317.37
8.1.100.0000.01017.36
8.1.90.0040.00417.30
8.1.80.0070.00017.26
8.1.70.0050.00317.45
8.1.60.0040.00417.50
8.1.50.0040.00417.34
8.1.40.0030.00517.45
8.1.30.0040.00417.48
8.1.20.0050.00217.41
8.1.10.0050.00317.41
8.1.00.0040.00417.31
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0080.00018.42
8.0.270.0040.00417.16
8.0.260.0060.00017.20
8.0.250.0050.00316.96
8.0.240.0030.00316.78
8.0.230.0070.00016.90
8.0.220.0000.00716.71
8.0.210.0040.00416.79
8.0.200.0040.00416.89
8.0.190.0040.00416.90
8.0.180.0000.00716.81
8.0.170.0070.00016.74
8.0.160.0050.00316.86
8.0.150.0030.00316.73
8.0.140.0070.00016.76
8.0.130.0000.00513.17
8.0.120.0030.00616.74
8.0.110.0040.00416.70
8.0.100.0000.00716.66
8.0.90.0000.00816.64
8.0.80.0070.01416.77
8.0.70.0040.00416.84
8.0.60.0070.00016.69
8.0.50.0070.00016.68
8.0.30.0090.00916.84
8.0.20.0120.00917.40
8.0.10.0040.00416.95
8.0.00.0090.00816.75
7.4.330.0020.00216.67
7.4.320.0030.00316.41
7.4.300.0060.00016.44
7.4.290.0030.00316.41
7.4.280.0000.00916.50
7.4.270.0040.00416.53
7.4.260.0000.00716.40
7.4.250.0070.00016.34
7.4.240.0020.00616.48
7.4.230.0030.00316.53
7.4.220.0090.01516.38
7.4.210.0090.00916.44
7.4.200.0040.00416.32
7.4.160.0070.01016.42
7.4.150.0090.00917.40
7.4.140.0100.00817.86
7.4.130.0090.01116.32
7.4.120.0080.01216.54
7.4.110.0150.00316.38
7.4.100.0160.00616.56
7.4.90.0070.01116.52
7.4.80.0140.00919.39
7.4.70.0060.00916.38
7.4.60.0110.00616.37
7.4.50.0070.01016.40
7.4.40.0100.00716.43
7.4.30.0100.01316.48
7.4.00.0030.01314.91
7.3.330.0000.00713.00
7.3.320.0050.00012.98
7.3.310.0040.00416.06
7.3.300.0030.00316.14
7.3.290.0070.00016.15
7.3.280.0110.00516.13
7.3.270.0120.00617.40
7.3.260.0110.00616.20
7.3.250.0050.01416.22
7.3.240.0100.01016.12
7.3.230.0130.01016.39
7.3.210.0070.01116.15
7.3.200.0100.00716.15
7.3.190.0090.00616.36
7.3.180.0120.00916.13
7.3.170.0110.01316.36
7.3.160.0120.00316.29
7.3.10.0040.01116.65
7.3.00.0040.01216.27
7.2.330.0060.01016.59
7.2.320.0060.01216.37
7.2.310.0090.01216.39
7.2.300.0190.00416.51
7.2.290.0130.00416.20
7.2.130.0100.00716.82
7.2.120.0030.01016.55
7.2.110.0030.00616.79
7.2.100.0060.00316.58
7.2.90.0100.00316.90
7.2.80.0070.00716.72
7.2.70.0030.00616.86
7.2.60.0100.00316.83
7.2.50.0100.00316.96
7.2.40.0030.00616.75
7.2.30.0030.00916.85
7.2.20.0090.00916.57
7.2.10.0070.00716.98
7.2.00.0040.00817.91
7.1.250.0030.00715.61
7.1.200.0000.01115.70
7.1.100.0000.01117.93
7.1.70.0100.00016.86
7.1.60.0120.01219.36
7.1.50.0130.01016.76
7.1.00.0100.07022.40
7.0.200.0000.00816.71
7.0.60.0070.08319.85
7.0.50.0100.07717.74
7.0.40.0070.07020.08
7.0.30.0270.05320.18
7.0.20.0230.03320.02
7.0.10.0100.09020.03
7.0.00.0070.05320.16
5.6.280.0000.04020.91
5.6.210.0100.08320.50
5.6.200.0070.07018.12
5.6.190.0130.08320.61
5.6.180.0470.07720.45
5.6.170.0200.04020.37
5.6.160.0030.05020.46
5.6.150.0070.08018.13
5.6.140.0000.08718.09
5.6.130.0070.03718.07
5.6.120.0000.04320.98
5.6.110.0030.05021.00
5.6.100.0130.04321.13
5.6.90.0070.08020.96
5.6.80.0070.03720.36
5.5.350.0230.07320.28
5.5.340.0070.06317.98
5.5.330.0030.08320.46
5.5.320.0500.07320.25
5.5.310.0230.04720.27
5.5.300.0100.08017.95
5.5.290.0000.05317.91
5.5.280.0030.06020.81
5.5.270.0100.08020.75
5.5.260.0070.04320.75
5.5.250.0100.04320.65
5.5.240.0200.07020.18

preferences:
49.92 ms | 401 KiB | 5 Q