3v4l.org

run code in 300+ PHP versions simultaneously
<?php $result = 'foo'; for ($i = 0; $i < 25; ++$i) { $result .= $result; } var_dump(strlen($result));

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)
8.3.60.0440.00742.77
8.3.50.0520.01044.24
8.3.40.0380.01344.94
8.3.30.0470.00345.15
8.3.20.0230.00646.54
8.3.10.0160.00649.57
8.3.00.0090.00645.54
8.2.180.0390.01642.64
8.2.170.0340.01444.97
8.2.160.0430.00746.58
8.2.150.0290.00045.02
8.2.140.0280.00046.59
8.2.130.0160.00648.30
8.2.120.0090.00647.14
8.2.110.0280.00346.52
8.2.100.0400.00744.14
8.2.90.0240.00044.11
8.2.80.0190.00644.84
8.2.70.0190.00344.12
8.2.60.0220.01044.45
8.2.50.0130.01043.58
8.2.40.0090.01245.88
8.2.30.0140.00744.27
8.2.20.0170.00743.84
8.2.10.0100.01344.25
8.2.00.0150.00743.83
8.1.280.0200.01343.77
8.1.270.0300.01049.48
8.1.260.0430.01746.47
8.1.250.0130.01349.99
8.1.240.0040.01146.71
8.1.230.0300.00748.38
8.1.220.0160.00643.68
8.1.210.0180.00743.49
8.1.200.0260.00043.44
8.1.190.0110.01143.36
8.1.180.0190.00343.65
8.1.170.0130.01044.85
8.1.160.0140.00748.12
8.1.150.0180.00344.94
8.1.140.0150.00643.61
8.1.130.0180.00444.04
8.1.120.0180.00443.59
8.1.110.0180.00443.53
8.1.100.0170.00343.53
8.1.90.0170.00343.57
8.1.80.0140.00743.51
8.1.70.0160.00643.52
8.1.60.0150.00743.70
8.1.50.0170.00743.61
8.1.40.0130.01043.56
8.1.30.0150.00843.73
8.1.20.0150.00743.59
8.1.10.0160.00643.52
8.1.00.0140.00743.50
8.0.300.0220.00442.77
8.0.290.0210.00442.66
8.0.280.0070.01844.43
8.0.270.0220.00042.75
8.0.260.0190.00343.20
8.0.250.0100.01042.91
8.0.240.0100.01342.89
8.0.230.0120.00842.91
8.0.220.0200.00042.89
8.0.210.0170.00742.69
8.0.200.0090.01242.89
8.0.190.0240.00742.98
8.0.180.0150.00842.90
8.0.170.0190.00342.85
8.0.160.0190.00342.86
8.0.150.0180.00442.70
8.0.140.0190.00442.80
8.0.130.0380.00363.61
8.0.120.0130.01042.84
8.0.110.0070.01442.88
8.0.100.0190.00342.86
8.0.90.0150.00442.77
8.0.80.0350.02642.89
8.0.70.0140.00742.83
8.0.60.0190.00342.84
8.0.50.0100.01042.86
8.0.30.0510.02743.03
8.0.20.0590.04142.97
8.0.10.0180.00442.89
8.0.00.0490.01842.65
7.4.330.0080.00440.91
7.4.320.0130.00642.51
7.4.300.0190.00042.40
7.4.290.0130.00942.38
7.4.280.0280.00642.50
7.4.270.0120.00942.52
7.4.260.0180.00742.30
7.4.250.0200.00342.44
7.4.240.0170.00542.43
7.4.230.0170.00342.55
7.4.220.0530.02342.46
7.4.210.0290.01342.54
7.4.200.0180.00442.25
7.4.160.0510.02542.30
7.4.150.0420.02942.35
7.4.140.0410.03142.53
7.4.130.0540.02342.48
7.4.120.0330.03442.45
7.4.110.0390.02642.37
7.4.100.0320.03542.48
7.4.90.0640.02542.53
7.4.80.0450.02642.49
7.4.70.0500.03142.44
7.4.60.0530.03342.59
7.4.50.0130.01042.21
7.4.40.0360.03942.43
7.4.30.0370.02842.33
7.4.10.0200.03042.31
7.4.00.0270.01741.50
7.3.330.0390.00463.38
7.3.320.0370.00363.52
7.3.310.0190.00442.26
7.3.300.0170.00342.35
7.3.290.0310.01542.37
7.3.280.0370.02342.34
7.3.270.0440.02742.31
7.3.260.0550.03242.32
7.3.250.0400.02842.41
7.3.240.0300.03642.46
7.3.230.0460.02042.54
7.3.210.0360.03342.32
7.3.200.0450.02442.38
7.3.190.0260.03942.45
7.3.180.0390.02742.41
7.3.170.0300.03742.41
7.3.160.0430.02542.39
7.3.130.0250.01942.14
7.3.120.0280.01342.55
7.3.110.0260.01342.29
7.3.100.0240.01742.21
7.3.90.0400.01342.36
7.3.80.0160.01942.47
7.3.70.0170.01342.34
7.3.60.0220.01642.16
7.3.50.0170.02142.51
7.3.40.0260.01642.18
7.3.30.0340.01742.21
7.3.20.0170.02043.70
7.3.10.0060.01943.95
7.3.00.0100.01643.94
7.2.330.0360.03342.51
7.2.320.0430.02542.72
7.2.310.0590.02342.72
7.2.300.0330.03342.37
7.2.290.0430.03942.36
7.2.260.0300.02342.59
7.2.250.0310.02142.75
7.2.240.0230.01342.26
7.2.230.0280.01842.48
7.2.220.0300.02342.59
7.2.210.0240.00742.35
7.2.200.0140.01742.36
7.2.190.0330.01342.57
7.2.180.0280.00342.56
7.2.170.0350.00342.45
7.2.160.0170.02442.60
7.2.150.0210.01044.13
7.2.140.0230.00744.14
7.2.130.0180.00744.20
7.2.120.0030.02944.08
7.2.110.0120.01944.16
7.2.100.0310.00344.13
7.2.90.0140.01044.16
7.2.80.0170.01044.14
7.2.70.0180.01144.02
7.2.60.0290.00843.47
7.2.50.0130.02744.13
7.2.40.0270.01044.25
7.2.30.0140.01444.14
7.2.20.0130.01344.10
7.2.10.0170.02044.12
7.2.00.0090.01944.63
7.1.330.0170.01342.92
7.1.320.0090.01842.92
7.1.310.0200.00742.99
7.1.300.0130.02343.06
7.1.290.0160.01642.84
7.1.280.0170.01443.12
7.1.270.0200.01043.11
7.1.260.0180.01143.02
7.1.250.0100.01042.98
7.1.240.0200.01043.03
7.1.230.0060.02143.08
7.1.220.0160.01342.91
7.1.210.0170.00742.99
7.1.200.0250.01042.17
7.1.190.0110.01142.89
7.1.180.0220.01342.96
7.1.170.0140.00942.92
7.1.160.0280.00642.94
7.1.150.0150.00942.93
7.1.140.0100.02142.97
7.1.130.0130.01643.10
7.1.120.0070.02443.11
7.1.110.0220.00943.04
7.1.100.0100.01543.43
7.1.90.0140.01442.90
7.1.80.0200.01043.08
7.1.70.0230.01042.91
7.1.60.0280.01242.93
7.1.50.0140.01942.87
7.1.40.0100.01743.09
7.1.30.0060.01942.99
7.1.20.0230.01343.04
7.1.10.0300.01243.04
7.1.00.0150.04045.64
7.0.330.0200.01642.59
7.0.320.0160.00942.98
7.0.310.0060.01642.93
7.0.300.0130.02742.73
7.0.290.0130.00942.88
7.0.280.0160.01042.70
7.0.270.0140.01042.72
7.0.260.0130.02242.88
7.0.250.0130.01343.01
7.0.240.0130.01342.73
7.0.230.0130.01342.87
7.0.220.0160.01242.81
7.0.210.0250.01242.74
7.0.200.1140.01442.69
7.0.190.0100.02342.65
7.0.180.0100.01342.87
7.0.170.0230.00342.88
7.0.160.0250.01142.67
7.0.150.0160.01942.80
7.0.140.0150.04545.32
7.0.130.0130.01642.98
7.0.120.0140.01042.69
7.0.110.0160.01642.65
7.0.100.0170.03644.43
7.0.90.0220.04744.48
7.0.80.0140.03144.53
7.0.70.0210.04144.45
7.0.60.0300.04544.34
7.0.50.0250.05344.58
7.0.40.0200.05041.28
7.0.30.0190.03241.33
7.0.20.0240.05741.38
7.0.10.0230.03541.27
7.0.00.0250.05341.23
5.6.400.0360.01364.05
5.6.390.0290.02663.90
5.6.380.0420.01663.89
5.6.370.0270.02764.00
5.6.360.0300.02763.88
5.6.350.0230.02064.04
5.6.340.0360.01063.89
5.6.330.0350.01763.77
5.6.320.0220.02664.13
5.6.310.0410.01063.75
5.6.300.0240.02764.05
5.6.290.0200.02663.98
5.6.280.0250.04266.40
5.6.270.0380.02463.98
5.6.260.0430.01064.05
5.6.250.0270.06266.23
5.6.240.0340.05166.16
5.6.230.0290.05666.46
5.6.220.0320.05066.30
5.6.210.0310.05366.18
5.6.200.0300.05866.41
5.6.190.0280.05966.40
5.6.180.0280.06266.69
5.6.170.0200.05966.51
5.6.160.0230.04866.36
5.6.150.0300.04566.47
5.6.140.0350.05766.54
5.6.130.0300.03366.41
5.6.120.0220.05566.71
5.6.110.0330.05366.51
5.6.100.0280.07066.44
5.6.90.0310.05366.34
5.6.80.0300.05266.16
5.6.70.0360.03366.14
5.6.60.0280.05365.98
5.6.50.0200.05866.21
5.6.40.0390.04266.23
5.6.30.0270.04466.09
5.6.20.0340.05266.18
5.6.10.0290.04266.18
5.6.00.0400.05366.05
5.5.380.0310.04766.14
5.5.370.0280.04366.07
5.5.360.0400.04866.07
5.5.350.0220.06066.21
5.5.340.0340.04966.26
5.5.330.0310.05566.39
5.5.320.0300.05366.38
5.5.310.0300.04066.34
5.5.300.0250.05766.37
5.5.290.0150.06466.16
5.5.280.0270.05966.31
5.5.270.0280.05866.29
5.5.260.0350.05566.33
5.5.250.0340.04766.29
5.5.240.0260.04065.92
5.5.230.0390.05265.93
5.5.220.0320.04865.95
5.5.210.0240.03865.91
5.5.200.0370.05265.96
5.5.190.0370.04866.04
5.5.180.0280.05765.94
5.5.170.0290.02663.84
5.5.160.0370.04266.00
5.5.150.0300.05766.01
5.5.140.0380.04565.97
5.5.130.0280.05365.75
5.5.120.0300.05866.05
5.5.110.0280.05165.80
5.5.100.0370.04066.04
5.5.90.0250.04165.82
5.5.80.0320.04965.94
5.5.70.0290.03366.16
5.5.60.0330.04865.79
5.5.50.0410.04865.80
5.5.40.0350.05365.81
5.5.30.0310.03465.91
5.5.20.0290.05565.81
5.5.10.0290.04266.00
5.5.00.0300.05565.91
5.4.450.0200.03663.82
5.4.440.0270.05863.99
5.4.430.0250.06063.76
5.4.420.0250.04863.73
5.4.410.0270.05563.84
5.4.400.0340.05263.69
5.4.390.0460.04363.59
5.4.380.0270.04563.72
5.4.370.0260.03563.54
5.4.360.0320.03763.62
5.4.350.0350.04863.79
5.4.340.0270.05763.64
5.4.330.0330.01360.45
5.4.320.0260.05563.54
5.4.310.0280.05363.58
5.4.300.0290.03263.56
5.4.290.0320.04863.74
5.4.280.0230.05163.66
5.4.270.0300.05763.63
5.4.260.0400.04563.59
5.4.250.0290.05863.64
5.4.240.0280.03563.61
5.4.230.0340.05063.59
5.4.220.0300.06063.48
5.4.210.0280.03763.71
5.4.200.0330.03863.65
5.4.190.0280.05063.56
5.4.180.0270.05263.68
5.4.170.0180.05363.78
5.4.160.0340.04963.60
5.4.150.0280.04563.64
5.4.140.0220.05462.32
5.4.130.0280.03562.40
5.4.120.0300.03762.25
5.4.110.0280.04862.32
5.4.100.0320.05062.55
5.4.90.0290.04762.28
5.4.80.0250.04562.33
5.4.70.0280.05062.25
5.4.60.0330.05062.39
5.4.50.0310.05062.37
5.4.40.0260.05062.38
5.4.30.0270.04762.37
5.4.20.0340.04862.31
5.4.10.0330.04262.23
5.4.00.0320.04461.92
5.3.290.0370.08062.72
5.3.280.0270.09762.60
5.3.270.0270.09762.54
5.3.260.0230.05362.55
5.3.250.0330.08362.70
5.3.240.0230.09062.54
5.3.230.0330.07762.71
5.3.220.0300.08762.62
5.3.210.0370.08062.68
5.3.200.0330.06362.46
5.3.190.0330.08362.66
5.3.180.0300.08362.51
5.3.170.0300.08062.59
5.3.160.0170.06762.64
5.3.150.0270.07762.50
5.3.140.0470.06762.45
5.3.130.0300.06362.55
5.3.120.0130.07062.59
5.3.110.0400.08062.65
5.3.100.0330.08762.03
5.3.90.0370.08062.12
5.3.80.0270.09761.95
5.3.70.0330.08761.99
5.3.60.0330.08062.03
5.3.50.0230.09061.91
5.3.40.0400.07361.93
5.3.30.0230.09361.78
5.3.20.0330.08361.63
5.3.10.0370.08061.55
5.3.00.0300.08761.68
5.2.170.0270.07359.17
5.2.160.0230.07759.13
5.2.150.0270.08359.15
5.2.140.0270.06759.15
5.2.130.0300.07059.04
5.2.120.0300.06759.13
5.2.110.0270.07759.16
5.2.100.0330.06358.96
5.2.90.0170.08759.11
5.2.80.0370.07059.35
5.2.70.0300.07759.19
5.2.60.0270.08059.14
5.2.50.0370.07358.90
5.2.40.0300.06358.88
5.2.30.0330.07058.99
5.2.20.0300.04059.01
5.2.10.0300.07359.04
5.2.00.0470.090106.63
5.1.60.0470.087105.86
5.1.50.0670.070105.88
5.1.40.0430.070105.73
5.1.30.0270.053106.29
5.1.20.0430.033106.14
5.1.10.0370.043105.87
5.1.00.0270.053106.01
5.0.50.0430.017105.09
5.0.40.0170.047104.34
5.0.30.0300.043104.18
5.0.20.0330.030104.16
5.0.10.0370.063103.91
5.0.00.0470.073104.04
4.4.90.0770.087149.80
4.4.80.0730.100149.77
4.4.70.0800.100149.75
4.4.60.0800.083149.85
4.4.50.0730.047149.88
4.4.40.0970.093149.84
4.4.30.0630.060149.77
4.4.20.0600.057149.86
4.4.10.0700.043149.85
4.4.00.0630.047149.90
4.3.110.0600.040149.70
4.3.100.0470.050149.77
4.3.90.0600.060149.77
4.3.80.0500.053149.70
4.3.70.0600.040149.68
4.3.60.0500.050149.71
4.3.50.0430.053149.76
4.3.40.0730.033149.73
4.3.30.0670.027148.53
4.3.20.0570.040148.41
4.3.10.0500.083148.45
4.3.00.0570.037148.41

preferences:
43.19 ms | 401 KiB | 5 Q