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)
8.5.30.0180.00917.22
8.5.20.0230.00619.12
8.5.10.0230.00718.39
8.5.00.0240.00818.18
8.4.180.0230.00919.47
8.4.170.0220.00420.79
8.4.160.0220.01120.83
8.4.150.0080.00417.67
8.4.140.0200.00918.03
8.4.130.0290.00817.79
8.4.120.0310.01018.27
8.4.110.0390.01017.73
8.4.100.0350.00717.66
8.4.90.0360.00917.66
8.4.80.0320.00717.63
8.4.70.0290.00617.48
8.4.60.0290.00817.60
8.4.50.0280.00717.75
8.4.40.0330.00717.69
8.4.30.0340.00817.26
8.4.20.0300.00717.37
8.4.10.0320.00717.34
8.3.300.0230.00819.45
8.3.290.0320.00619.56
8.3.280.0210.01118.12
8.3.270.0220.00816.51
8.3.260.0240.00816.58
8.3.250.0280.00716.55
8.3.240.0270.00816.40
8.3.230.0270.00716.42
8.3.220.0260.00616.61
8.3.210.0260.00616.44
8.3.200.0260.00616.44
8.3.190.0250.00716.44
8.3.180.0270.00716.52
8.3.170.0300.00516.39
8.3.160.0360.00716.46
8.3.150.0330.00816.27
8.3.140.0320.00816.35
8.3.130.0260.00516.53
8.3.120.0270.00616.51
8.3.110.0330.00716.30
8.3.100.0340.00817.98
8.3.90.0330.00817.82
8.3.80.0300.00718.05
8.3.70.0260.00617.98
8.3.60.0320.00617.83
8.3.50.0280.00818.53
8.3.40.0300.00718.82
8.3.30.0220.00718.81
8.3.20.0210.00719.37
8.3.10.0240.00819.52
8.3.00.0220.00719.55
8.2.300.0290.00819.99
8.2.290.0260.00716.87
8.2.280.0250.00617.04
8.2.270.0310.00716.46
8.2.260.0280.00616.40
8.2.250.0260.00716.49
8.2.240.0280.00716.55
8.2.230.0270.00716.72
8.2.220.0260.00718.48
8.2.210.0260.00618.57
8.2.200.0250.00817.94
8.2.190.0300.00617.84
8.2.180.0250.00818.02
8.2.170.0280.00819.36
8.2.160.0280.00719.13
8.2.150.0240.00719.80
8.2.140.0260.00619.74
8.2.130.0260.00619.23
8.2.120.0240.00619.95
8.2.110.0280.00719.63
8.2.100.0260.00619.52
8.2.90.0270.00619.49
8.2.80.0280.00719.31
8.2.70.0230.00619.34
8.2.60.0250.00619.34
8.2.50.0260.00719.27
8.2.40.0260.00719.43
8.2.30.0250.00819.50
8.2.20.0250.00719.31
8.2.10.0250.00719.26
8.2.00.0280.00619.31
8.1.340.0230.01018.55
8.1.330.0310.00716.48
8.1.320.0260.00816.10
8.1.310.0300.00716.22
8.1.300.0270.00816.05
8.1.290.0260.00817.71
8.1.280.0280.00818.26
8.1.270.0260.00819.45
8.1.260.0250.00819.85
8.1.250.0250.00719.87
8.1.240.0270.00719.33
8.1.230.0250.00719.46
8.1.220.0230.00719.11
8.1.210.0250.00719.15
8.1.200.0240.00719.08
8.1.190.0240.00818.92
8.1.180.0240.00819.05
8.1.170.0270.00819.19
8.1.160.0270.00719.40
8.1.150.0250.00619.17
8.1.140.0250.00819.16
8.1.130.0280.00719.04
8.1.120.0260.00819.13
8.1.110.0250.00719.15
8.1.100.0270.00619.12
8.1.90.0220.00819.18
8.1.80.0250.00719.13
8.1.70.0270.00819.10
8.1.60.0280.00619.18
8.1.50.0250.00719.18
8.1.40.0260.00819.26
8.1.30.0240.00619.25
8.1.20.0240.00819.24
8.1.10.0260.00719.15
8.1.00.0260.00818.98
8.0.300.0270.00618.65
8.0.290.0280.00618.51
8.0.280.0260.00818.64
8.0.270.0250.00718.56
8.0.260.0270.00618.56
8.0.250.0240.00618.65
8.0.240.0250.00718.61
8.0.230.0280.00718.59
8.0.220.0270.00718.53
8.0.210.0260.00518.50
8.0.200.0260.00818.56
8.0.190.0260.00718.65
8.0.180.0250.00618.72
8.0.170.0280.00618.61
8.0.160.0280.00818.56
8.0.150.0270.00718.53
8.0.140.0240.00818.50
8.0.130.0250.00718.30
8.0.120.0250.00618.54
8.0.110.0240.00618.49
8.0.100.0240.00618.44
8.0.90.0250.00618.46
8.0.80.0240.00518.45
8.0.70.0220.00618.49
8.0.60.0250.00518.48
8.0.50.0250.00718.53
8.0.30.0220.00818.42
8.0.20.0220.00718.32
8.0.10.0270.00618.54
8.0.00.0230.00818.31
7.4.330.0240.00618.22
7.4.320.0230.00618.29
7.4.300.0230.00718.28
7.4.290.0240.00618.29
7.4.280.0240.00618.27
7.4.270.0240.00518.28
7.4.260.0240.00618.24
7.4.250.0240.00518.28
7.4.240.0230.00618.16
7.4.230.0250.00718.22
7.4.220.0250.00618.28
7.4.210.0250.00618.25
7.4.200.0240.00618.27
7.4.190.0250.00718.42
7.4.180.0270.00618.45
7.4.160.0250.00718.30
7.4.150.0230.00718.11
7.4.140.0230.00718.03
7.4.130.0240.00617.89
7.4.120.0200.00617.90
7.4.110.0200.00617.82
7.4.100.0200.00617.94
7.4.90.0200.00617.95
7.4.80.0220.00718.02
7.4.70.0210.00717.84
7.4.60.0220.00717.82
7.4.50.0230.00817.76
7.4.40.0230.00617.76
7.4.30.0210.00717.75
7.4.20.0240.00717.83
7.4.10.0220.00717.71
7.4.00.0190.00817.56
7.3.330.0260.00617.78
7.3.320.0230.00717.82
7.3.310.0250.00818.06
7.3.300.0250.00618.05
7.3.290.0230.00717.82
7.3.280.0230.00717.77
7.3.270.0240.00717.87
7.3.260.0260.00717.76
7.3.250.0230.00717.61
7.3.240.0230.00717.72
7.3.230.0240.00717.74
7.3.220.0240.00717.84
7.3.210.0240.00717.67
7.3.200.0250.00717.70
7.3.190.0220.00717.63
7.3.180.0220.00617.66
7.3.170.0230.00817.57
7.3.160.0240.00717.63
7.3.150.0220.00717.73
7.3.140.0220.00717.72
7.3.130.0220.00617.56
7.3.120.0200.00717.45
7.3.110.0210.00717.47
7.3.100.0210.00717.48
7.3.90.0210.00617.75
7.3.80.0210.00717.54
7.3.70.0210.00717.54
7.3.60.0220.00717.58
7.3.50.0210.00717.63
7.3.40.0220.00717.57
7.3.30.0210.00617.62
7.3.20.0220.00618.70
7.3.10.0200.00718.53
7.3.00.0220.00618.58
7.2.340.0210.00617.95
7.2.330.0220.00617.88
7.2.320.0200.00717.81
7.2.310.0210.00717.76
7.2.300.0220.00717.76
7.2.290.0220.00717.73
7.2.280.0220.00717.83
7.2.270.0210.00617.82
7.2.260.0210.00617.65
7.2.250.0200.00817.69
7.2.240.0180.00817.76
7.2.230.0210.00817.70
7.2.220.0220.00717.70
7.2.210.0220.00717.65
7.2.200.0230.00717.75
7.2.190.0220.00617.73
7.2.180.0210.00817.69
7.2.170.0210.00717.81
7.2.160.0210.00817.76
7.2.150.0250.00718.77
7.2.140.0220.00718.77
7.2.130.0200.00818.79
7.2.120.0220.00718.82
7.2.110.0220.00718.81
7.2.100.0220.00618.75
7.2.90.0220.00718.78
7.2.80.0210.00718.77
7.2.70.0200.00718.83
7.2.60.0210.00618.67
7.2.50.0220.00718.77
7.2.40.0220.00718.79
7.2.30.0210.00818.78
7.2.20.0190.00818.82
7.2.10.0210.00718.88
7.2.00.0200.00818.80
7.1.330.0250.00617.97
7.1.320.0210.00717.93
7.1.310.0220.00817.94
7.1.300.0220.00717.95
7.1.290.0250.00617.95
7.1.280.0210.00817.99
7.1.270.0260.00617.97
7.1.260.0260.00617.93
7.1.250.0230.00617.76
7.1.240.0240.00617.89
7.1.230.0210.00717.98
7.1.220.0230.00617.97
7.1.210.0210.00717.90
7.1.200.0220.00517.94
7.1.190.0220.00618.01
7.1.180.0200.00618.01
7.1.170.0180.00718.03
7.1.160.0210.00517.96
7.1.150.0190.00717.98
7.1.140.0200.00618.01
7.1.130.0210.00618.01
7.1.120.0210.00718.02
7.1.110.0220.00617.95
7.1.100.0220.00617.96
7.1.90.0210.00617.95
7.1.80.0210.00618.02
7.1.70.0200.00717.80
7.1.60.0230.00617.99
7.1.50.0240.00617.93
7.1.40.0200.00618.04
7.1.30.0190.00717.94
7.1.20.0190.00617.95
7.1.10.0180.00617.95
7.1.00.0190.01018.13
7.0.330.0180.00717.76
7.0.320.0210.00717.71
7.0.310.0200.00617.71
7.0.300.0220.00617.67
7.0.290.0200.00617.76
7.0.280.0190.00717.70
7.0.270.0200.00617.72
7.0.260.0220.00617.68
7.0.250.0190.00617.83
7.0.240.0180.00617.87
7.0.230.0200.00617.79
7.0.220.0210.00617.77
7.0.210.0210.00717.80
7.0.200.0200.00517.65
7.0.190.0190.00617.82
7.0.180.0180.00617.86
7.0.170.0210.00717.84
7.0.160.0180.00717.77
7.0.150.0210.00617.77
7.0.140.0220.00717.78
7.0.130.0200.00817.78
7.0.120.0200.00717.76
7.0.110.0190.00817.68
7.0.100.0190.00517.78
7.0.90.0180.00717.62
7.0.80.0200.00617.67
7.0.70.0220.00517.66
7.0.60.0180.00917.76
7.0.50.0190.00917.60
7.0.40.0180.00917.71
7.0.30.0180.01017.72
7.0.20.0190.00817.73
7.0.10.0180.00917.73
7.0.00.0190.00917.65
5.6.400.0200.00817.24
5.6.390.0210.00817.29
5.6.380.0210.00817.22
5.6.370.0200.00817.20
5.6.360.0220.00717.19
5.6.350.0230.00917.24
5.6.340.0210.00917.23
5.6.330.0200.00817.27
5.6.320.0210.01017.21
5.6.310.0200.01017.22
5.6.300.0210.00917.15
5.6.290.0190.01017.19
5.6.280.0210.01117.45
5.6.270.0200.00817.17
5.6.260.0210.00817.23
5.6.250.0210.00817.11
5.6.240.0210.00817.25
5.6.230.0210.00817.29
5.6.220.0180.01017.25
5.6.210.0190.00917.41
5.6.200.0180.01117.34
5.6.190.0200.01417.46
5.6.180.0190.01317.42
5.6.170.0200.01217.37
5.6.160.0200.01317.42
5.6.150.0170.01117.23
5.6.140.0200.01117.26
5.6.130.0210.01117.25
5.6.120.0200.01217.40
5.6.110.0180.01217.34
5.6.100.0180.01017.34
5.6.90.0180.01217.38
5.6.80.0190.01117.37
5.6.70.0190.00917.28
5.6.60.0220.00917.25
5.6.50.0200.01017.18
5.6.40.0190.00917.21
5.6.30.0210.00917.22
5.6.20.0210.00817.17
5.6.10.0200.01117.20
5.6.00.0200.00817.14
5.5.380.0210.01017.23
5.5.370.0220.00917.19
5.5.360.0220.00817.07
5.5.350.0410.01017.27
5.5.340.0190.01117.20
5.5.330.0190.01017.24
5.5.320.0190.01017.25
5.5.310.0180.01217.30
5.5.300.0190.00917.18
5.5.290.0170.01317.13
5.5.280.0190.01117.29
5.5.270.0200.01217.29
5.5.260.0190.01217.25
5.5.250.0190.01217.33
5.5.240.0180.01217.33
5.5.230.0200.01017.21
5.5.220.0210.00917.15
5.5.210.0210.00817.20
5.5.200.0190.00917.04
5.5.190.0200.00817.10
5.5.180.0220.00917.08
5.5.170.0200.00917.10
5.5.160.0200.00817.03
5.5.150.0200.00717.06
5.5.140.0210.00817.02
5.5.130.0180.01017.04
5.5.120.0180.00917.02
5.5.110.0200.00817.02
5.5.100.0200.00717.16
5.5.90.0180.01017.19
5.5.80.0200.00617.18
5.5.70.0200.00717.12
5.5.60.0180.00717.11
5.5.50.0190.01117.09
5.5.40.0200.00817.11
5.5.30.0190.00917.21
5.5.20.0180.01017.17
5.5.10.0180.00917.15
5.5.00.0200.00817.11

preferences:
38.3 ms | 403 KiB | 5 Q