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)
8.5.10.0100.00620.23
8.5.00.0150.00719.82
8.4.150.0020.00014.05
8.4.140.0230.00917.47
8.4.130.0280.00617.97
8.4.120.0300.01018.31
8.4.110.0390.00917.73
8.4.100.0350.00717.69
8.4.90.0360.00817.68
8.4.80.0320.00717.65
8.4.70.0280.00517.46
8.4.60.0280.00717.60
8.4.50.0270.00717.77
8.4.40.0320.00717.72
8.4.30.0330.00817.25
8.4.20.0290.00617.38
8.4.10.0320.00717.33
8.3.280.0100.01118.18
8.3.270.0180.00816.50
8.3.260.0200.00716.60
8.3.250.0270.00716.55
8.3.240.0260.00816.37
8.3.230.0270.00716.41
8.3.220.0250.00616.61
8.3.210.0240.00616.43
8.3.200.0240.00616.43
8.3.190.0240.00716.43
8.3.180.0270.00716.52
8.3.170.0300.00516.38
8.3.160.0360.00716.46
8.3.150.0330.00816.24
8.3.140.0310.00816.33
8.3.130.0250.00516.53
8.3.120.0260.00616.50
8.3.110.0320.00716.28
8.3.100.0330.00818.10
8.3.90.0320.00817.92
8.3.80.0300.00718.16
8.3.70.0250.00618.09
8.3.60.0310.00617.93
8.3.50.0270.00718.68
8.3.40.0290.00818.91
8.3.30.0220.00618.89
8.3.20.0210.00719.50
8.3.10.0230.00819.64
8.3.00.0210.00719.68
8.2.290.0250.00716.88
8.2.280.0250.00617.08
8.2.270.0310.00716.45
8.2.260.0270.00616.39
8.2.250.0250.00716.47
8.2.240.0280.00716.55
8.2.230.0260.00716.73
8.2.220.0260.00718.65
8.2.210.0260.00618.73
8.2.200.0240.00818.05
8.2.190.0300.00517.94
8.2.180.0250.00818.13
8.2.170.0280.00819.46
8.2.160.0290.00719.24
8.2.150.0240.00719.94
8.2.140.0260.00619.88
8.2.130.0260.00519.34
8.2.120.0240.00620.10
8.2.110.0280.00719.75
8.2.100.0260.00619.63
8.2.90.0270.00619.60
8.2.80.0280.00619.41
8.2.70.0230.00619.46
8.2.60.0250.00619.46
8.2.50.0260.00719.39
8.2.40.0260.00719.54
8.2.30.0250.00819.64
8.2.20.0250.00719.44
8.2.10.0250.00719.38
8.2.00.0280.00619.42
8.1.330.0310.00716.47
8.1.320.0260.00716.06
8.1.310.0300.00716.19
8.1.300.0270.00816.00
8.1.290.0260.00817.80
8.1.280.0280.00818.39
8.1.270.0260.00719.57
8.1.260.0240.00820.00
8.1.250.0240.00720.03
8.1.240.0260.00719.47
8.1.230.0250.00719.58
8.1.220.0230.00719.23
8.1.210.0240.00719.26
8.1.200.0240.00619.19
8.1.190.0240.00819.04
8.1.180.0240.00819.17
8.1.170.0270.00819.30
8.1.160.0280.00719.53
8.1.150.0250.00719.29
8.1.140.0240.00819.27
8.1.130.0280.00719.15
8.1.120.0260.00819.24
8.1.110.0250.00719.25
8.1.100.0270.00619.22
8.1.90.0220.00719.29
8.1.80.0250.00619.24
8.1.70.0260.00819.20
8.1.60.0280.00619.29
8.1.50.0250.00719.28
8.1.40.0250.00719.37
8.1.30.0240.00619.36
8.1.20.0240.00819.34
8.1.10.0260.00719.25
8.1.00.0260.00819.09
8.0.300.0270.00618.78
8.0.290.0280.00618.62
8.0.280.0270.00718.76
8.0.270.0250.00718.67
8.0.260.0270.00518.68
8.0.250.0240.00618.75
8.0.240.0250.00618.72
8.0.230.0280.00718.71
8.0.220.0270.00718.64
8.0.210.0250.00518.64
8.0.200.0260.00718.67
8.0.190.0260.00718.76
8.0.180.0250.00618.72
8.0.170.0280.00618.72
8.0.160.0280.00818.68
8.0.150.0270.00718.64
8.0.140.0240.00818.62
8.0.130.0250.00718.40
8.0.120.0250.00618.66
8.0.110.0240.00618.61
8.0.100.0240.00618.57
8.0.90.0250.00618.57
8.0.80.0240.00518.57
8.0.70.0220.00618.62
8.0.60.0250.00518.60
8.0.50.0250.00718.65
8.0.30.0210.00818.53
8.0.20.0220.00718.39
8.0.10.0270.00618.64
8.0.00.0230.00818.38
7.4.330.0240.00618.34
7.4.320.0230.00618.40
7.4.300.0230.00718.40
7.4.290.0250.00618.42
7.4.280.0240.00618.40
7.4.270.0240.00518.40
7.4.260.0250.00618.35
7.4.250.0250.00518.40
7.4.240.0240.00618.26
7.4.230.0260.00718.33
7.4.220.0260.00618.41
7.4.210.0250.00718.38
7.4.200.0250.00618.40
7.4.190.0250.00818.56
7.4.180.0280.00618.59
7.4.160.0260.00718.43
7.4.150.0240.00718.21
7.4.140.0230.00718.11
7.4.130.0240.00617.97
7.4.120.0210.00617.98
7.4.110.0200.00617.89
7.4.100.0200.00618.02
7.4.90.0210.00718.04
7.4.80.0230.00718.11
7.4.70.0200.00717.92
7.4.60.0210.00717.89
7.4.50.0220.00717.83
7.4.40.0230.00617.83
7.4.30.0210.00717.82
7.4.20.0240.00717.91
7.4.10.0210.00717.77
7.4.00.0190.00817.62
7.3.330.0260.00617.87
7.3.320.0230.00617.91
7.3.310.0250.00818.17
7.3.300.0250.00618.16
7.3.290.0230.00717.90
7.3.280.0230.00717.85
7.3.270.0240.00717.95
7.3.260.0260.00717.84
7.3.250.0230.00717.67
7.3.240.0230.00617.79
7.3.230.0230.00717.81
7.3.220.0240.00717.92
7.3.210.0240.00717.74
7.3.200.0250.00717.77
7.3.190.0220.00717.69
7.3.180.0220.00617.72
7.3.170.0230.00917.63
7.3.160.0240.00717.69
7.3.150.0220.00717.80
7.3.140.0210.00717.79
7.3.130.0220.00617.61
7.3.120.0200.00717.50
7.3.110.0210.00717.52
7.3.100.0210.00717.53
7.3.90.0210.00617.81
7.3.80.0210.00717.60
7.3.70.0210.00717.59
7.3.60.0210.00717.64
7.3.50.0210.00717.70
7.3.40.0220.00717.63
7.3.30.0200.00617.67
7.3.20.0220.00618.72
7.3.10.0190.00718.55
7.3.00.0220.00618.60
7.2.340.0210.00618.04
7.2.330.0220.00617.96
7.2.320.0200.00717.89
7.2.310.0210.00717.82
7.2.300.0210.00717.83
7.2.290.0220.00717.79
7.2.280.0220.00717.91
7.2.270.0220.00617.90
7.2.260.0220.00617.71
7.2.250.0200.00817.75
7.2.240.0190.00817.83
7.2.230.0220.00817.76
7.2.220.0220.00717.77
7.2.210.0220.00717.72
7.2.200.0240.00717.81
7.2.190.0230.00617.80
7.2.180.0210.00817.75
7.2.170.0210.00617.88
7.2.160.0220.00817.83
7.2.150.0250.00718.79
7.2.140.0220.00618.79
7.2.130.0190.00818.81
7.2.120.0220.00718.83
7.2.110.0210.00718.83
7.2.100.0210.00618.76
7.2.90.0220.00718.80
7.2.80.0210.00718.79
7.2.70.0190.00718.85
7.2.60.0210.00618.69
7.2.50.0220.00718.79
7.2.40.0210.00718.81
7.2.30.0200.00818.80
7.2.20.0180.00818.83
7.2.10.0210.00618.90
7.2.00.0190.00718.82
7.1.330.0250.00618.00
7.1.320.0200.00717.97
7.1.310.0220.00717.98
7.1.300.0230.00718.00
7.1.290.0260.00617.98
7.1.280.0220.00818.01
7.1.270.0260.00618.00
7.1.260.0260.00617.96
7.1.250.0230.00617.77
7.1.240.0230.00617.92
7.1.230.0210.00718.01
7.1.220.0220.00618.01
7.1.210.0210.00717.93
7.1.200.0210.00517.99
7.1.190.0220.00618.04
7.1.180.0200.00618.05
7.1.170.0180.00718.06
7.1.160.0210.00517.99
7.1.150.0190.00718.01
7.1.140.0210.00518.05
7.1.130.0220.00618.06
7.1.120.0220.00718.06
7.1.110.0220.00617.99
7.1.100.0230.00618.00
7.1.90.0220.00617.99
7.1.80.0210.00718.06
7.1.70.0200.00717.83
7.1.60.0230.00618.04
7.1.50.0250.00617.97
7.1.40.0200.00618.07
7.1.30.0190.00817.97
7.1.20.0190.00617.98
7.1.10.0190.00617.99
7.1.00.0190.01018.19
7.0.330.0180.00717.80
7.0.320.0210.00717.75
7.0.310.0200.00617.78
7.0.300.0220.00617.70
7.0.290.0200.00617.80
7.0.280.0190.00717.77
7.0.270.0200.00517.78
7.0.260.0220.00717.73
7.0.250.0180.00617.87
7.0.240.0180.00617.90
7.0.230.0190.00617.82
7.0.220.0210.00617.80
7.0.210.0200.00717.82
7.0.200.0200.00517.67
7.0.190.0190.00617.85
7.0.180.0180.00617.90
7.0.170.0210.00717.87
7.0.160.0170.00717.80
7.0.150.0200.00617.81
7.0.140.0210.00717.82
7.0.130.0200.00717.82
7.0.120.0200.00717.82
7.0.110.0190.00817.72
7.0.100.0180.00517.80
7.0.90.0170.00717.67
7.0.80.0200.00617.70
7.0.70.0220.00517.71
7.0.60.0180.00917.80
7.0.50.0180.00917.64
7.0.40.0180.00917.74
7.0.30.0180.01017.78
7.0.20.0180.00817.78
7.0.10.0170.00917.78
7.0.00.0180.00917.67
5.6.400.0200.00817.28
5.6.390.0210.00817.33
5.6.380.0210.00817.25
5.6.370.0200.00817.24
5.6.360.0210.00717.23
5.6.350.0230.00917.27
5.6.340.0210.00917.27
5.6.330.0200.00817.31
5.6.320.0210.01017.25
5.6.310.0200.01017.26
5.6.300.0200.01017.19
5.6.290.0180.01017.23
5.6.280.0200.01117.50
5.6.270.0190.00817.21
5.6.260.0210.00817.27
5.6.250.0200.00817.14
5.6.240.0210.00817.29
5.6.230.0210.00817.33
5.6.220.0180.01017.29
5.6.210.0190.01017.46
5.6.200.0170.01117.38
5.6.190.0200.01517.50
5.6.180.0190.01317.47
5.6.170.0200.01217.42
5.6.160.0200.01317.46
5.6.150.0170.01117.27
5.6.140.0200.01117.30
5.6.130.0210.01217.29
5.6.120.0190.01217.44
5.6.110.0180.01217.39
5.6.100.0170.01017.38
5.6.90.0170.01317.42
5.6.80.0190.01217.41
5.6.70.0180.00917.32
5.6.60.0220.00917.29
5.6.50.0190.01017.22
5.6.40.0190.00917.25
5.6.30.0200.00917.26
5.6.20.0210.00817.21
5.6.10.0200.01117.24
5.6.00.0200.00817.18
5.5.380.0210.01017.27
5.5.370.0220.00917.22
5.5.360.0220.00817.10
5.5.350.0420.01017.31
5.5.340.0190.01117.24
5.5.330.0180.01017.28
5.5.320.0190.01017.29
5.5.310.0170.01217.34
5.5.300.0180.01017.21
5.5.290.0170.01317.17
5.5.280.0190.01217.33
5.5.270.0200.01217.33
5.5.260.0190.01317.29
5.5.250.0190.01217.37
5.5.240.0180.01217.38
5.5.230.0210.01017.25
5.5.220.0200.00917.19
5.5.210.0200.00817.24
5.5.200.0200.00817.07
5.5.190.0200.00917.13
5.5.180.0220.00917.11
5.5.170.0200.01017.14
5.5.160.0190.00817.06
5.5.150.0200.00817.09
5.5.140.0210.00817.05
5.5.130.0180.01017.06
5.5.120.0180.00917.05
5.5.110.0200.00817.05
5.5.100.0200.00717.19
5.5.90.0180.01017.22
5.5.80.0190.00617.21
5.5.70.0190.00717.16
5.5.60.0180.00717.15
5.5.50.0190.01117.13
5.5.40.0200.00717.14
5.5.30.0180.00917.24
5.5.20.0170.01017.21
5.5.10.0180.00917.18
5.5.00.0200.00817.15

preferences:
134.98 ms | 403 KiB | 5 Q