3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = ' '; $strl = ' '; var_dump(empty($str)); var_dump(empty($strl));

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)
8.4.120.0290.01018.41
8.4.110.0400.00917.77
8.4.100.0340.00717.71
8.4.90.0360.00917.73
8.4.80.0310.00717.65
8.4.70.0260.00517.46
8.4.60.0270.00717.64
8.4.50.0260.00717.77
8.4.40.0310.00717.76
8.4.30.0330.00817.24
8.4.20.0280.00617.36
8.4.10.0310.00717.34
8.3.250.0260.00716.57
8.3.240.0250.00816.36
8.3.230.0260.00716.44
8.3.220.0250.00616.66
8.3.210.0230.00516.44
8.3.200.0230.00616.47
8.3.190.0230.00616.47
8.3.180.0260.00616.52
8.3.170.0280.00516.41
8.3.160.0350.00716.45
8.3.150.0310.00816.23
8.3.140.0300.00816.32
8.3.130.0240.00416.55
8.3.120.0250.00516.51
8.3.110.0320.00616.25
8.3.100.0320.00818.27
8.3.90.0320.00818.05
8.3.80.0290.00718.33
8.3.70.0240.00618.23
8.3.60.0300.00618.07
8.3.50.0260.00718.86
8.3.40.0290.00719.06
8.3.30.0210.00619.03
8.3.20.0210.00719.67
8.3.10.0230.00819.82
8.3.00.0210.00719.86
8.2.290.0250.00716.96
8.2.280.0240.00617.15
8.2.270.0280.00716.49
8.2.260.0260.00616.37
8.2.250.0250.00716.46
8.2.240.0270.00716.59
8.2.230.0250.00716.77
8.2.220.0250.00718.84
8.2.210.0250.00618.92
8.2.200.0240.00818.17
8.2.190.0300.00518.06
8.2.180.0240.00818.29
8.2.170.0280.00819.62
8.2.160.0280.00719.39
8.2.150.0240.00720.13
8.2.140.0250.00620.08
8.2.130.0240.00519.51
8.2.120.0230.00520.30
8.2.110.0270.00719.92
8.2.100.0260.00619.81
8.2.90.0260.00619.76
8.2.80.0270.00619.57
8.2.70.0220.00519.62
8.2.60.0240.00619.63
8.2.50.0250.00619.55
8.2.40.0250.00719.73
8.2.30.0250.00819.80
8.2.20.0250.00719.58
8.2.10.0240.00719.52
8.2.00.0280.00619.57
8.1.330.0310.00716.54
8.1.320.0260.00716.06
8.1.310.0290.00716.22
8.1.300.0270.00816.02
8.1.290.0250.00817.96
8.1.280.0270.00818.57
8.1.270.0260.00719.76
8.1.260.0240.00820.21
8.1.250.0240.00720.26
8.1.240.0260.00719.64
8.1.230.0250.00719.76
8.1.220.0230.00719.38
8.1.210.0240.00719.43
8.1.200.0230.00619.35
8.1.190.0230.00819.20
8.1.180.0240.00819.35
8.1.170.0270.00819.46
8.1.160.0270.00719.70
8.1.150.0240.00719.45
8.1.140.0240.00719.45
8.1.130.0280.00719.31
8.1.120.0260.00819.39
8.1.110.0240.00719.42
8.1.100.0260.00619.37
8.1.90.0210.00719.46
8.1.80.0250.00619.41
8.1.70.0260.00819.36
8.1.60.0270.00619.44
8.1.50.0250.00719.44
8.1.40.0250.00719.52
8.1.30.0240.00619.52
8.1.20.0240.00819.49
8.1.10.0250.00719.43
8.1.00.0260.00719.23
8.0.300.0270.00618.94
8.0.290.0280.00618.78
8.0.280.0260.00718.93
8.0.270.0250.00718.83
8.0.260.0260.00518.84
8.0.250.0240.00618.93
8.0.240.0240.00618.89
8.0.230.0280.00718.88
8.0.220.0260.00718.79
8.0.210.0240.00518.81
8.0.200.0250.00718.84
8.0.190.0250.00718.93
8.0.180.0240.00618.88
8.0.170.0280.00618.89
8.0.160.0280.00818.83
8.0.150.0270.00718.82
8.0.140.0240.00818.78
8.0.130.0250.00618.54
8.0.120.0240.00618.82
8.0.110.0240.00618.77
8.0.100.0230.00618.74
8.0.90.0240.00618.75
8.0.80.0230.00518.73
8.0.70.0210.00518.78
8.0.60.0250.00518.78
8.0.50.0250.00618.82
8.0.30.0210.00818.66
8.0.20.0210.00718.50
8.0.10.0270.00618.79
8.0.00.0220.00818.47
7.4.330.0230.00618.51
7.4.320.0230.00618.59
7.4.300.0230.00718.57
7.4.290.0240.00618.59
7.4.280.0230.00518.56
7.4.270.0240.00518.58
7.4.260.0250.00618.52
7.4.250.0250.00518.57
7.4.240.0230.00618.41
7.4.230.0250.00718.51
7.4.220.0260.00618.57
7.4.210.0250.00718.55
7.4.200.0250.00618.57
7.4.190.0260.00718.75
7.4.180.0280.00618.78
7.4.160.0260.00718.59
7.4.150.0240.00718.36
7.4.140.0230.00718.24
7.4.130.0240.00618.09
7.4.120.0200.00618.10
7.4.110.0200.00618.03
7.4.100.0200.00618.13
7.4.90.0200.00718.15
7.4.80.0220.00718.23
7.4.70.0200.00718.03
7.4.60.0210.00718.00
7.4.50.0220.00717.93
7.4.40.0230.00617.95
7.4.30.0210.00717.93
7.4.20.0240.00718.01
7.4.10.0210.00717.87
7.4.00.0190.00817.69
7.3.330.0260.00618.02
7.3.320.0230.00618.06
7.3.310.0250.00818.34
7.3.300.0250.00618.33
7.3.290.0230.00718.04
7.3.280.0230.00717.96
7.3.270.0240.00718.09
7.3.260.0260.00717.98
7.3.250.0230.00717.77
7.3.240.0230.00617.92
7.3.230.0230.00717.95
7.3.220.0240.00618.05
7.3.210.0240.00717.86
7.3.200.0240.00717.88
7.3.190.0220.00717.80
7.3.180.0210.00617.82
7.3.170.0230.00917.74
7.3.160.0230.00717.79
7.3.150.0220.00717.92
7.3.140.0210.00717.91
7.3.130.0220.00617.73
7.3.120.0190.00717.62
7.3.110.0200.00717.63
7.3.100.0200.00717.63
7.3.90.0210.00617.90
7.3.80.0200.00717.71
7.3.70.0210.00717.70
7.3.60.0210.00717.75
7.3.50.0210.00617.80
7.3.40.0220.00717.71
7.3.30.0200.00617.78
7.3.20.0210.00618.90
7.3.10.0190.00718.70
7.3.00.0220.00618.76
7.2.340.0210.00518.18
7.2.330.0210.00518.09
7.2.320.0200.00717.99
7.2.310.0200.00717.95
7.2.300.0210.00717.95
7.2.290.0210.00717.91
7.2.280.0220.00718.03
7.2.270.0210.00618.03
7.2.260.0210.00617.82
7.2.250.0200.00817.87
7.2.240.0180.00817.94
7.2.230.0210.00817.88
7.2.220.0220.00717.88
7.2.210.0220.00717.81
7.2.200.0230.00717.92
7.2.190.0230.00617.90
7.2.180.0210.00817.87
7.2.170.0210.00617.98
7.2.160.0220.00717.92
7.2.150.0240.00718.95
7.2.140.0210.00618.97
7.2.130.0190.00818.95
7.2.120.0210.00718.97
7.2.110.0210.00718.96
7.2.100.0210.00618.91
7.2.90.0220.00718.95
7.2.80.0210.00718.94
7.2.70.0190.00718.99
7.2.60.0200.00618.82
7.2.50.0220.00718.92
7.2.40.0210.00718.94
7.2.30.0200.00818.94
7.2.20.0180.00818.98
7.2.10.0210.00619.03
7.2.00.0190.00718.96
7.1.330.0250.00618.17
7.1.320.0200.00718.13
7.1.310.0220.00718.14
7.1.300.0230.00718.16
7.1.290.0260.00618.13
7.1.280.0220.00918.18
7.1.270.0220.00618.17
7.1.260.0270.00618.13
7.1.250.0230.00617.92
7.1.240.0230.00618.08
7.1.230.0210.00718.18
7.1.220.0220.00618.17
7.1.210.0210.00718.08
7.1.200.0210.00518.13
7.1.190.0210.00618.22
7.1.180.0190.00518.22
7.1.170.0180.00718.25
7.1.160.0210.00518.16
7.1.150.0190.00718.16
7.1.140.0200.00518.21
7.1.130.0210.00618.23
7.1.120.0210.00718.23
7.1.110.0220.00718.17
7.1.100.0220.00618.19
7.1.90.0220.00618.16
7.1.80.0210.00618.23
7.1.70.0200.00817.98
7.1.60.0230.00618.21
7.1.50.0220.00618.15
7.1.40.0200.00618.23
7.1.30.0180.00818.16
7.1.20.0190.00618.15
7.1.10.0180.00618.14
7.1.00.0180.01018.36
7.0.330.0180.00717.98
7.0.320.0210.00717.93
7.0.310.0200.00617.94
7.0.300.0220.00617.86
7.0.290.0200.00517.99
7.0.280.0190.00717.94
7.0.270.0200.00517.95
7.0.260.0220.00617.91
7.0.250.0180.00618.03
7.0.240.0170.00618.08
7.0.230.0190.00617.98
7.0.220.0210.00617.96
7.0.210.0200.00717.99
7.0.200.0200.00517.83
7.0.190.0180.00518.03
7.0.180.0180.00618.07
7.0.170.0190.00718.04
7.0.160.0170.00717.97
7.0.150.0200.00618.00
7.0.140.0210.00717.99
7.0.130.0200.00817.98
7.0.120.0200.00717.98
7.0.110.0180.00817.89
7.0.100.0180.00518.00
7.0.90.0170.00717.85
7.0.80.0190.00617.87
7.0.70.0220.00517.88
7.0.60.0170.00917.97
7.0.50.0180.01017.82
7.0.40.0180.00917.91
7.0.30.0170.01117.95
7.0.20.0180.00817.94
7.0.10.0170.00917.95
7.0.00.0180.00917.83
5.6.400.0200.00817.38
5.6.390.0210.00817.42
5.6.380.0210.00817.35
5.6.370.0200.00817.35
5.6.360.0210.00717.32
5.6.350.0220.00917.38
5.6.340.0210.00917.37
5.6.330.0190.00817.42
5.6.320.0200.01017.36
5.6.310.0200.01017.37
5.6.300.0200.01017.28
5.6.290.0180.01017.34
5.6.280.0200.01217.62
5.6.270.0190.00817.32
5.6.260.0200.00817.36
5.6.250.0200.00817.24
5.6.240.0210.00817.39
5.6.230.0200.00917.42
5.6.220.0170.01017.38
5.6.210.0180.01017.55
5.6.200.0170.01117.47
5.6.190.0200.01517.61
5.6.180.0180.01317.58
5.6.170.0200.01217.53
5.6.160.0200.01317.55
5.6.150.0160.01117.36
5.6.140.0190.01117.39
5.6.130.0210.01217.38
5.6.120.0190.01317.54
5.6.110.0180.01317.50
5.6.100.0170.01017.48
5.6.90.0170.01317.54
5.6.80.0180.01217.51
5.6.70.0180.00917.41
5.6.60.0220.00917.38
5.6.50.0190.01017.30
5.6.40.0190.00917.36
5.6.30.0200.00917.37
5.6.20.0210.00817.30
5.6.10.0200.01117.34
5.6.00.0200.00817.27
5.5.380.0210.01017.35
5.5.370.0220.00917.30
5.5.360.0210.00817.19
5.5.350.0430.01017.41
5.5.340.0180.01117.34
5.5.330.0180.01017.38
5.5.320.0190.01017.39
5.5.310.0170.01317.45
5.5.300.0180.01017.32
5.5.290.0160.01417.27
5.5.280.0190.01217.44
5.5.270.0200.01317.43
5.5.260.0190.01317.40
5.5.250.0190.01217.48
5.5.240.0180.01317.47
5.5.230.0210.01017.36
5.5.220.0200.00917.29
5.5.210.0200.00817.34
5.5.200.0200.00917.17
5.5.190.0200.00917.22
5.5.180.0220.00917.21
5.5.170.0200.01017.23
5.5.160.0190.00817.16
5.5.150.0190.00817.20
5.5.140.0200.00817.17
5.5.130.0180.01017.18
5.5.120.0170.00917.17
5.5.110.0190.00817.16
5.5.100.0190.00817.30
5.5.90.0170.01017.33
5.5.80.0190.00617.32
5.5.70.0190.00717.26
5.5.60.0180.00717.24
5.5.50.0190.01217.21
5.5.40.0200.00817.24
5.5.30.0180.01017.34
5.5.20.0170.01017.32
5.5.10.0170.00917.29
5.5.00.0200.00717.24

preferences:
33.05 ms | 403 KiB | 5 Q