3v4l.org

run code in 300+ PHP versions simultaneously
<?php $result = 'foo'; for ($i = 0; $i < 100; ++$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)
8.3.40.0330.01744.87
8.3.30.0420.01045.18
8.3.20.0220.00646.54
8.3.10.0210.00449.63
8.3.00.0090.00645.34
8.2.170.0390.01045.20
8.2.160.0550.00646.76
8.2.150.0220.00645.21
8.2.140.0190.00946.85
8.2.130.0130.01048.29
8.2.120.0130.00347.12
8.2.110.0200.01046.93
8.2.100.0450.00044.01
8.2.90.0310.00045.42
8.2.80.0210.00343.73
8.2.70.0150.01143.75
8.2.60.0130.00944.27
8.2.50.0230.00343.73
8.2.40.0210.00346.05
8.2.30.0240.00344.22
8.2.20.0180.00643.76
8.2.10.0130.01044.09
8.2.00.0240.00043.80
8.1.270.0130.01049.93
8.1.260.0210.00746.50
8.1.250.0230.00049.88
8.1.240.0260.00648.31
8.1.230.0260.01044.15
8.1.220.0160.00643.76
8.1.210.0180.00643.74
8.1.200.0230.00043.49
8.1.190.0190.00643.49
8.1.180.0140.00743.44
8.1.170.0240.00344.79
8.1.160.0190.00648.18
8.1.150.0110.01144.91
8.1.140.0140.00743.49
8.1.130.0180.00443.99
8.1.120.0170.00343.61
8.1.110.0140.00743.57
8.1.100.0190.00343.56
8.1.90.0120.00943.61
8.1.80.0140.00743.52
8.1.70.0140.00743.45
8.1.60.0200.00343.65
8.1.50.0130.01043.65
8.1.40.0130.00943.54
8.1.30.0170.00743.73
8.1.20.0220.00043.66
8.1.10.0190.00343.48
8.1.00.0130.01043.59
8.0.300.0250.00943.13
8.0.290.0180.00642.89
8.0.280.0130.00944.42
8.0.270.0230.00043.23
8.0.260.0140.00743.12
8.0.250.0130.00742.92
8.0.240.0170.00442.82
8.0.230.0190.00342.88
8.0.220.0140.00742.75
8.0.210.0100.01042.88
8.0.200.0170.00742.87
8.0.190.0240.00742.86
8.0.180.0100.01342.93
8.0.170.0150.00742.93
8.0.160.0210.00342.70
8.0.150.0190.00742.80
8.0.140.0180.00342.79
8.0.130.0290.01963.48
8.0.120.0170.00742.89
8.0.110.0140.00742.91
8.0.100.0160.00442.80
8.0.90.0190.00042.64
8.0.80.0340.01942.77
8.0.70.0100.01042.71
8.0.60.0140.00742.84
8.0.50.0160.00442.70
8.0.30.0530.02442.83
8.0.20.0550.03742.99
8.0.10.0180.00442.77
8.0.00.0440.02542.64
7.4.330.0110.00040.98
7.4.320.0130.00742.35
7.4.300.0190.00042.32
7.4.290.0140.00742.42
7.4.280.0330.00042.39
7.4.270.0180.00442.56
7.4.260.0200.00742.41
7.4.250.0200.00342.34
7.4.240.0200.00242.53
7.4.230.0150.00642.53
7.4.220.0430.01342.46
7.4.210.0290.01942.46
7.4.200.0130.01042.58
7.4.160.0490.03242.64
7.4.150.0370.03342.21
7.4.140.0450.02642.43
7.4.130.0490.02342.37
7.4.120.0370.03342.44
7.4.110.0390.02642.32
7.4.100.0280.05242.25
7.4.90.0510.01642.30
7.4.80.0540.02642.34
7.4.70.0660.02242.40
7.4.60.0460.02042.54
7.4.50.0140.01042.42
7.4.40.0450.02442.38
7.4.30.0390.02642.46
7.4.00.0180.02141.11
7.3.330.0380.00763.42
7.3.320.0300.01063.55
7.3.310.0070.01342.13
7.3.300.0140.00742.16
7.3.290.0170.03042.38
7.3.280.0460.01642.30
7.3.270.0480.02242.70
7.3.260.0550.04042.69
7.3.250.0390.02942.26
7.3.240.0340.03742.63
7.3.230.0330.03242.48
7.3.210.0480.03242.22
7.3.200.0550.02642.29
7.3.190.0450.02242.39
7.3.180.0300.03642.67
7.3.170.0400.02642.25
7.3.160.0440.02442.59
7.2.330.0510.01642.70
7.2.320.0530.01742.68
7.2.310.0650.01942.56
7.2.300.0420.02442.72
7.2.290.0500.02342.75
7.2.80.0590.00742.20
7.2.60.0510.01342.58
7.2.00.0130.01044.95
7.1.200.0240.01041.45
7.1.100.0060.01343.82
7.1.70.0290.00642.58
7.1.60.0200.01743.02
7.1.50.0200.01742.77
7.1.00.0100.07748.14
7.0.200.0290.01542.63
7.0.140.0170.07047.73
7.0.60.0230.06046.13
7.0.50.0200.06043.93
7.0.40.0200.07043.75
7.0.30.0830.06343.64
7.0.20.0630.04743.63
7.0.10.0200.05743.49
7.0.00.0230.06743.44
5.6.280.0170.07369.31
5.6.210.0270.06068.51
5.6.200.0230.09066.15
5.6.190.0200.09768.14
5.6.180.0870.10068.29
5.6.170.0730.04068.26
5.6.160.0230.04768.39
5.6.150.0230.04366.07
5.6.140.0230.04766.02
5.6.130.0230.09066.13
5.6.120.0070.06768.96
5.6.110.0200.04769.11
5.6.100.0400.07368.96
5.6.90.0330.08069.12
5.6.80.0270.09768.30
5.5.350.0800.03368.48
5.5.340.0230.04365.87
5.5.330.0170.06068.17
5.5.320.0930.05068.13
5.5.310.1170.10068.13
5.5.300.0300.08765.99
5.5.290.0170.09065.88
5.5.280.0300.07768.88
5.5.270.0270.05368.97
5.5.260.0170.05368.75
5.5.250.0200.07768.55
5.5.240.0430.03768.19
5.4.450.1470.04367.51
5.4.440.1630.04367.19
5.4.430.0330.04367.18
5.4.420.1130.06367.18
5.4.410.0570.05767.19
5.4.400.0530.05767.05
5.4.390.0870.04766.95
5.4.380.1500.10066.66
5.4.370.1600.06366.59
5.4.360.1570.06366.52
5.4.350.2400.06366.63
5.4.340.1500.06366.55
5.4.320.0150.05460.45
5.4.310.0150.04560.45
5.4.300.0130.04560.46
5.4.290.0210.03960.45
5.4.280.0160.04460.35
5.4.270.0170.04360.35
5.4.260.0190.04660.35
5.4.250.0200.05360.35
5.4.240.0190.04460.35
5.4.230.0160.04460.34
5.4.220.0140.04460.34
5.4.210.0180.04860.34
5.4.200.0200.04460.34
5.4.190.0150.05160.34
5.4.180.0180.05060.34
5.4.170.0170.05560.35
5.4.160.0160.04960.35
5.4.150.0190.04660.34
5.4.140.0140.04560.02
5.4.130.0160.04260.01
5.4.120.0220.03559.97
5.4.110.0210.05259.96
5.4.100.0190.03859.97
5.4.90.0190.04059.96
5.4.80.0180.04259.96
5.4.70.0180.04459.96
5.4.60.0140.04859.96
5.4.50.0160.04459.96
5.4.40.0180.04359.95
5.4.30.0230.05459.95
5.4.20.0200.04359.95
5.4.10.0160.04759.95
5.4.00.0190.03859.44
5.3.290.0230.04060.93
5.3.280.0180.04260.86
5.3.270.0170.04560.87
5.3.260.0200.05360.87
5.3.250.0150.04660.88
5.3.240.0150.05460.87
5.3.230.0200.05060.87
5.3.220.0150.05360.83
5.3.210.0120.04960.84
5.3.200.0160.04360.83
5.3.190.0170.04360.83
5.3.180.0210.04160.83
5.3.170.0170.04760.83
5.3.160.0200.04760.83
5.3.150.0190.04860.83
5.3.140.0140.05360.82
5.3.130.0200.04960.82
5.3.120.0170.06460.82
5.3.110.0190.04760.82
5.3.100.0210.03960.30
5.3.90.0170.04260.29
5.3.80.0150.04360.27
5.3.70.0130.05360.27
5.3.60.0250.03860.26
5.3.50.0180.03960.21
5.3.40.0150.04160.21
5.3.30.0180.04560.17
5.3.20.0170.04060.14
5.3.10.0160.03960.11
5.3.00.0140.04759.89
5.2.170.0240.03557.39
5.2.160.0160.04657.39
5.2.150.0180.04257.39
5.2.140.0120.05157.38
5.2.130.0160.03957.35
5.2.120.0210.02957.34
5.2.110.0190.04357.35
5.2.100.0150.04457.34
5.2.90.0200.03957.34
5.2.80.0160.03457.34
5.2.70.0170.03257.34
5.2.60.0180.04057.30
5.2.50.0190.04457.27
5.2.40.0130.04557.24
5.2.30.0180.04657.21
5.2.20.0160.04357.21
5.2.10.0650.06859.24
5.2.00.4900.186766.84
5.1.60.9830.6371546.04
5.1.51.4371.0772482.00
5.1.41.4830.9372472.78
5.1.31.4070.9232143.96
5.1.21.4500.8632351.77
5.1.11.4770.9132218.57
5.1.01.4700.8372260.24
5.0.51.6470.8172387.30
5.0.41.5031.0602004.03
5.0.31.4671.0301854.68
5.0.21.5600.9232378.13
5.0.11.4630.7331869.73
5.0.01.4500.8802236.98
4.4.91.5401.0171968.46
4.4.81.4701.0171706.22
4.4.71.4001.0771157.78
4.4.61.4001.0831562.66
4.4.51.3171.1601271.30
4.4.41.4400.9971363.12
4.4.31.4331.0001584.38
4.4.21.4801.0301871.37
4.4.11.3770.9101606.84
4.4.01.3571.0631415.92
4.3.111.2831.1601157.69
4.3.101.2370.8601157.54
4.3.91.3601.0231721.67
4.3.81.4900.9401787.16
4.3.71.4001.0871157.58
4.3.61.4901.0371157.63
4.3.51.3271.1231157.64
4.3.41.3301.1001157.61
4.3.31.3671.0631273.76
4.3.21.3831.1071156.38
4.3.11.4101.0201156.35
4.3.01.4200.170580.37

preferences:
41.39 ms | 400 KiB | 5 Q