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)
8.5.30.0220.00817.20
8.5.20.0270.00718.32
8.5.10.0260.00717.84
8.5.00.0290.00717.70
8.4.180.0270.01019.41
8.4.170.0270.00620.27
8.4.160.0250.01120.43
8.4.150.0170.00518.28
8.4.140.0230.00917.87
8.4.130.0300.00817.69
8.4.120.0310.01018.20
8.4.110.0390.00917.70
8.4.100.0350.00717.65
8.4.90.0360.00917.66
8.4.80.0320.00717.61
8.4.70.0290.00617.47
8.4.60.0290.00817.60
8.4.50.0290.00717.74
8.4.40.0340.00717.66
8.4.30.0340.00817.26
8.4.20.0310.00817.36
8.4.10.0330.00717.35
8.3.300.0280.00819.06
8.3.290.0320.00619.06
8.3.280.0200.01118.17
8.3.270.0240.00816.55
8.3.260.0260.00916.62
8.3.250.0270.00716.57
8.3.240.0270.00716.42
8.3.230.0270.00716.45
8.3.220.0270.00616.62
8.3.210.0260.00616.46
8.3.200.0270.00716.46
8.3.190.0260.00716.46
8.3.180.0280.00716.54
8.3.170.0310.00616.42
8.3.160.0360.00716.48
8.3.150.0340.00816.30
8.3.140.0320.00816.38
8.3.130.0260.00616.54
8.3.120.0270.00616.52
8.3.110.0330.00716.33
8.3.100.0340.00817.89
8.3.90.0330.00817.75
8.3.80.0310.00717.96
8.3.70.0270.00617.89
8.3.60.0320.00617.75
8.3.50.0280.00818.42
8.3.40.0300.00818.75
8.3.30.0220.00718.72
8.3.20.0220.00719.27
8.3.10.0240.00819.41
8.3.00.0220.00719.43
8.2.300.0320.00819.32
8.2.290.0260.00716.86
8.2.280.0260.00617.02
8.2.270.0300.00816.48
8.2.260.0280.00616.42
8.2.250.0260.00816.51
8.2.240.0280.00716.56
8.2.230.0280.00716.72
8.2.220.0270.00718.36
8.2.210.0260.00718.45
8.2.200.0250.00817.86
8.2.190.0310.00617.77
8.2.180.0260.00817.93
8.2.170.0290.00819.26
8.2.160.0280.00719.05
8.2.150.0240.00719.67
8.2.140.0260.00619.61
8.2.130.0260.00619.14
8.2.120.0240.00619.82
8.2.110.0280.00719.52
8.2.100.0260.00619.41
8.2.90.0270.00619.39
8.2.80.0280.00719.21
8.2.70.0240.00619.25
8.2.60.0250.00619.24
8.2.50.0260.00719.18
8.2.40.0270.00719.33
8.2.30.0260.00819.38
8.2.20.0260.00719.21
8.2.10.0250.00719.16
8.2.00.0280.00619.20
8.1.340.0260.00918.17
8.1.330.0310.00716.50
8.1.320.0270.00816.15
8.1.310.0300.00716.26
8.1.300.0280.00816.10
8.1.290.0260.00817.65
8.1.280.0280.00818.15
8.1.270.0260.00719.33
8.1.260.0250.00819.71
8.1.250.0250.00719.74
8.1.240.0270.00719.22
8.1.230.0260.00819.34
8.1.220.0250.00719.00
8.1.210.0250.00719.05
8.1.200.0240.00718.99
8.1.190.0250.00818.84
8.1.180.0240.00818.95
8.1.170.0280.00819.09
8.1.160.0280.00719.29
8.1.150.0250.00719.06
8.1.140.0250.00819.07
8.1.130.0280.00818.94
8.1.120.0270.00819.05
8.1.110.0250.00719.04
8.1.100.0260.00619.04
8.1.90.0230.00719.08
8.1.80.0250.00719.03
8.1.70.0260.00819.00
8.1.60.0280.00619.10
8.1.50.0250.00719.09
8.1.40.0250.00819.17
8.1.30.0250.00619.14
8.1.20.0250.00819.14
8.1.10.0260.00719.07
8.1.00.0270.00718.90
8.0.300.0270.00618.55
8.0.290.0280.00618.41
8.0.280.0260.00818.53
8.0.270.0250.00718.44
8.0.260.0270.00618.46
8.0.250.0250.00618.54
8.0.240.0250.00718.51
8.0.230.0280.00718.49
8.0.220.0270.00718.42
8.0.210.0260.00518.40
8.0.200.0260.00718.46
8.0.190.0260.00718.55
8.0.180.0250.00718.60
8.0.170.0280.00718.50
8.0.160.0270.00818.47
8.0.150.0280.00718.41
8.0.140.0250.00818.40
8.0.130.0250.00718.21
8.0.120.0250.00618.43
8.0.110.0240.00618.39
8.0.100.0240.00618.35
8.0.90.0250.00618.36
8.0.80.0240.00618.35
8.0.70.0230.00618.39
8.0.60.0250.00618.37
8.0.50.0250.00718.43
8.0.30.0220.00818.34
8.0.20.0220.00718.25
8.0.10.0270.00618.45
8.0.00.0230.00818.25
7.4.330.0240.00618.13
7.4.320.0230.00618.19
7.4.300.0240.00718.18
7.4.290.0250.00618.20
7.4.280.0240.00518.18
7.4.270.0240.00518.18
7.4.260.0240.00618.15
7.4.250.0240.00618.18
7.4.240.0230.00618.07
7.4.230.0250.00618.12
7.4.220.0250.00618.19
7.4.210.0250.00718.16
7.4.200.0240.00618.18
7.4.190.0250.00718.31
7.4.180.0270.00618.33
7.4.160.0250.00718.20
7.4.150.0230.00718.04
7.4.140.0230.00717.96
7.4.130.0240.00617.83
7.4.120.0200.00617.84
7.4.110.0200.00617.76
7.4.100.0200.00617.87
7.4.90.0200.00717.89
7.4.80.0230.00717.95
7.4.70.0210.00717.79
7.4.60.0220.00817.77
7.4.50.0230.00717.71
7.4.40.0240.00617.71
7.4.30.0220.00717.70
7.4.20.0240.00717.77
7.4.10.0220.00717.66
7.4.00.0200.00817.52
7.3.330.0260.00617.72
7.3.320.0230.00717.75
7.3.310.0250.00817.98
7.3.300.0250.00617.97
7.3.290.0230.00717.76
7.3.280.0230.00717.71
7.3.270.0250.00717.80
7.3.260.0260.00717.71
7.3.250.0230.00717.56
7.3.240.0230.00717.67
7.3.230.0240.00717.69
7.3.220.0240.00717.78
7.3.210.0240.00717.62
7.3.200.0250.00717.65
7.3.190.0220.00717.58
7.3.180.0220.00617.61
7.3.170.0230.00817.53
7.3.160.0240.00717.58
7.3.150.0220.00717.67
7.3.140.0220.00717.67
7.3.130.0220.00617.52
7.3.120.0200.00717.41
7.3.110.0210.00717.43
7.3.100.0210.00717.44
7.3.90.0220.00617.70
7.3.80.0210.00717.50
7.3.70.0220.00717.50
7.3.60.0220.00717.54
7.3.50.0210.00717.59
7.3.40.0230.00717.53
7.3.30.0210.00617.57
7.3.20.0220.00618.67
7.3.10.0200.00718.50
7.3.00.0220.00618.56
7.2.340.0210.00617.89
7.2.330.0220.00617.82
7.2.320.0210.00717.75
7.2.310.0220.00717.71
7.2.300.0220.00717.71
7.2.290.0220.00717.68
7.2.280.0220.00717.77
7.2.270.0210.00617.76
7.2.260.0210.00617.61
7.2.250.0200.00717.64
7.2.240.0190.00817.71
7.2.230.0220.00817.65
7.2.220.0220.00717.65
7.2.210.0220.00717.61
7.2.200.0230.00717.69
7.2.190.0230.00617.68
7.2.180.0210.00817.64
7.2.170.0220.00717.75
7.2.160.0220.00817.71
7.2.150.0250.00718.74
7.2.140.0230.00718.74
7.2.130.0190.00818.78
7.2.120.0220.00718.80
7.2.110.0220.00718.79
7.2.100.0220.00618.73
7.2.90.0230.00718.75
7.2.80.0220.00718.75
7.2.70.0200.00718.81
7.2.60.0210.00618.66
7.2.50.0230.00718.75
7.2.40.0220.00718.77
7.2.30.0210.00818.77
7.2.20.0190.00818.79
7.2.10.0210.00718.86
7.2.00.0200.00818.79
7.1.330.0260.00617.94
7.1.320.0210.00717.90
7.1.310.0220.00817.91
7.1.300.0230.00717.92
7.1.290.0260.00617.92
7.1.280.0220.00817.96
7.1.270.0260.00617.94
7.1.260.0260.00617.90
7.1.250.0230.00617.74
7.1.240.0240.00617.87
7.1.230.0220.00717.95
7.1.220.0230.00617.95
7.1.210.0220.00717.87
7.1.200.0220.00517.93
7.1.190.0220.00717.98
7.1.180.0210.00617.97
7.1.170.0190.00718.00
7.1.160.0210.00517.91
7.1.150.0190.00717.95
7.1.140.0210.00517.98
7.1.130.0210.00617.97
7.1.120.0210.00717.99
7.1.110.0220.00617.92
7.1.100.0220.00617.92
7.1.90.0220.00617.91
7.1.80.0210.00717.98
7.1.70.0200.00717.76
7.1.60.0230.00617.95
7.1.50.0240.00617.89
7.1.40.0200.00618.01
7.1.30.0190.00717.91
7.1.20.0190.00617.90
7.1.10.0190.00617.92
7.1.00.0190.01018.09
7.0.330.0180.00717.72
7.0.320.0210.00717.68
7.0.310.0200.00617.68
7.0.300.0220.00617.63
7.0.290.0210.00617.72
7.0.280.0200.00717.67
7.0.270.0210.00517.68
7.0.260.0220.00617.64
7.0.250.0190.00617.79
7.0.240.0180.00617.83
7.0.230.0200.00617.77
7.0.220.0210.00617.74
7.0.210.0210.00717.78
7.0.200.0200.00617.63
7.0.190.0190.00617.79
7.0.180.0190.00617.83
7.0.170.0210.00717.81
7.0.160.0180.00717.74
7.0.150.0210.00617.74
7.0.140.0220.00717.75
7.0.130.0210.00717.74
7.0.120.0210.00717.72
7.0.110.0200.00817.64
7.0.100.0190.00517.75
7.0.90.0180.00717.59
7.0.80.0200.00617.63
7.0.70.0230.00517.63
7.0.60.0180.00917.73
7.0.50.0190.00917.57
7.0.40.0190.00917.68
7.0.30.0190.01017.70
7.0.20.0190.00817.70
7.0.10.0180.00917.70
7.0.00.0190.00917.61
5.6.400.0210.00817.21
5.6.390.0210.00817.26
5.6.380.0210.00817.19
5.6.370.0210.00817.18
5.6.360.0220.00717.17
5.6.350.0230.00917.21
5.6.340.0210.00817.21
5.6.330.0200.00817.24
5.6.320.0210.00917.18
5.6.310.0210.00917.20
5.6.300.0210.00917.13
5.6.290.0190.01017.17
5.6.280.0210.01117.41
5.6.270.0200.00817.15
5.6.260.0210.00817.20
5.6.250.0210.00817.09
5.6.240.0210.00817.23
5.6.230.0210.00817.26
5.6.220.0180.00917.22
5.6.210.0190.00917.38
5.6.200.0180.01117.31
5.6.190.0200.01417.42
5.6.180.0190.01317.39
5.6.170.0210.01217.34
5.6.160.0200.01217.38
5.6.150.0180.01117.21
5.6.140.0200.01117.24
5.6.130.0220.01117.23
5.6.120.0200.01217.36
5.6.110.0190.01217.32
5.6.100.0180.01017.31
5.6.90.0180.01217.35
5.6.80.0190.01117.33
5.6.70.0190.00917.25
5.6.60.0220.00917.22
5.6.50.0200.01017.16
5.6.40.0190.00917.19
5.6.30.0210.00917.20
5.6.20.0210.00817.15
5.6.10.0210.01017.18
5.6.00.0200.00817.12
5.5.380.0210.01017.20
5.5.370.0220.00917.16
5.5.360.0220.00817.05
5.5.350.0410.00917.25
5.5.340.0190.01117.18
5.5.330.0190.01017.21
5.5.320.0200.00917.22
5.5.310.0180.01217.27
5.5.300.0190.00917.16
5.5.290.0180.01317.11
5.5.280.0200.01117.26
5.5.270.0200.01217.27
5.5.260.0190.01217.23
5.5.250.0190.01117.30
5.5.240.0180.01217.30
5.5.230.0200.01017.19
5.5.220.0210.00917.13
5.5.210.0210.00817.18
5.5.200.0200.00817.03
5.5.190.0200.00817.08
5.5.180.0220.00917.06
5.5.170.0200.00917.09
5.5.160.0200.00817.02
5.5.150.0200.00717.04
5.5.140.0210.00717.01
5.5.130.0190.01017.02
5.5.120.0180.00917.01
5.5.110.0200.00817.01
5.5.100.0200.00717.14
5.5.90.0180.01017.16
5.5.80.0200.00717.16
5.5.70.0200.00717.10
5.5.60.0190.00717.09
5.5.50.0190.01117.08
5.5.40.0200.00817.09
5.5.30.0190.00917.18
5.5.20.0180.01017.15
5.5.10.0190.00917.13
5.5.00.0200.00717.09

preferences:
49.42 ms | 2144 KiB | 5 Q