3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); for($i=0;$i<100;$i++) { $a = strtolower(strtoupper(implode(array_merge(str_split($a), range("a", "z"))))); }

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)
8.3.60.0130.00718.32
8.3.50.0080.00720.96
8.3.40.0070.00718.99
8.3.30.0110.00719.01
8.3.20.0040.00420.23
8.3.10.0040.00421.97
8.3.00.0040.00420.69
8.2.180.0070.01116.49
8.2.170.0110.00422.96
8.2.160.0070.00719.27
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0070.00021.09
8.2.110.0060.00321.05
8.2.100.0100.00317.72
8.2.90.0050.00219.13
8.2.80.0000.00717.97
8.2.70.0110.00017.63
8.2.60.0060.00317.80
8.2.50.0000.00818.07
8.2.40.0020.00518.16
8.2.30.0000.00718.04
8.2.20.0040.00417.70
8.2.10.0000.00817.79
8.2.00.0020.00517.69
8.1.280.0090.00625.92
8.1.270.0060.00323.99
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00420.88
8.1.230.0090.00320.87
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0070.00317.22
8.1.190.0000.00817.52
8.1.180.0040.00420.39
8.1.170.0060.00318.52
8.1.160.0040.00422.08
8.1.150.0040.00418.55
8.1.140.0000.00817.30
8.1.130.0000.00717.73
8.1.120.0030.00417.43
8.1.110.0040.00717.43
8.1.100.0040.00417.28
8.1.90.0000.00717.38
8.1.80.0000.00717.29
8.1.70.0000.00717.34
8.1.60.0000.00817.41
8.1.50.0000.00817.41
8.1.40.0040.00417.38
8.1.30.0040.00417.51
8.1.20.0000.00817.55
8.1.10.0040.00417.47
8.1.00.0030.00517.41
8.0.300.0000.00718.77
8.0.290.0000.00717.05
8.0.280.0030.00318.32
8.0.270.0000.00717.08
8.0.260.0030.00316.86
8.0.250.0030.00316.95
8.0.240.0000.00716.84
8.0.230.0040.00416.92
8.0.220.0040.00416.86
8.0.210.0000.00716.90
8.0.200.0040.00416.94
8.0.190.0000.00917.01
8.0.180.0040.00416.87
8.0.170.0030.00516.82
8.0.160.0000.00716.81
8.0.150.0000.00716.86
8.0.140.0000.00716.73
8.0.130.0030.00313.27
8.0.120.0030.00516.86
8.0.110.0030.00616.92
8.0.100.0040.00416.99
8.0.90.0030.00416.83
8.0.80.0070.00716.90
8.0.70.0040.00416.77
8.0.60.0050.00216.84
8.0.50.0000.00816.83
8.0.30.0110.00716.85
8.0.20.0060.01617.40
8.0.10.0070.00016.87
8.0.00.0080.01416.61
7.4.330.0000.00915.00
7.4.320.0040.00716.95
7.4.300.0050.00516.95
7.4.290.0000.01116.88
7.4.280.0030.00916.80
7.4.270.0030.00816.86
7.4.260.0040.00816.80
7.4.250.0000.01316.89
7.4.240.0040.00816.86
7.4.230.0000.01216.94
7.4.220.0130.01316.75
7.4.210.0070.01516.86
7.4.200.0030.00816.79
7.4.190.0000.01116.89
7.4.160.0070.01416.85
7.4.150.0130.01117.40
7.4.140.0080.01617.86
7.4.130.0140.01516.92
7.4.120.0120.01716.97
7.4.110.0120.01616.93
7.4.100.0130.01916.88
7.4.90.0100.01316.74
7.4.80.0090.01519.39
7.4.70.0100.01416.71
7.4.60.0130.02316.82
7.4.50.0040.01116.68
7.4.40.0070.01822.77
7.4.30.0070.01716.85
7.4.00.0030.02015.09
7.3.330.0030.00713.61
7.3.320.0000.00913.61
7.3.310.0030.00916.70
7.3.300.0060.00516.73
7.3.290.0120.01516.74
7.3.280.0090.01716.77
7.3.270.0090.01617.40
7.3.260.0110.01716.80
7.3.250.0080.01816.92
7.3.240.0170.01416.80
7.3.230.0090.02416.82
7.3.210.0100.01716.82
7.3.200.0100.01319.39
7.3.190.0070.01816.88
7.3.180.0100.01316.96
7.3.170.0070.02316.79
7.3.160.0110.01416.74
7.3.120.0100.01415.36
7.2.330.0140.01016.86
7.2.320.0090.01917.04
7.2.310.0120.01317.07
7.2.300.0060.01816.73
7.2.290.0050.01916.88
7.2.00.0000.02119.04
7.1.100.0040.01818.21
7.1.70.0040.01217.35
7.1.60.0000.01617.05
7.1.50.0100.02117.02
7.1.00.0000.04022.28
7.0.200.0030.02416.82
7.0.140.0000.08721.92
7.0.60.0130.06021.71
7.0.50.0030.04318.11
7.0.40.0000.05019.90
7.0.30.0230.05320.30
7.0.20.0300.09020.21
7.0.10.0130.08320.09
7.0.00.0030.08720.14
5.6.280.0070.10321.46
5.6.210.0070.10321.26
5.6.200.0100.11318.71
5.6.190.0070.08321.00
5.6.180.0230.08720.86
5.6.170.0330.08020.92
5.6.160.0130.09020.77
5.6.150.0070.11018.70
5.6.140.0130.11018.71
5.6.130.0030.10718.61
5.6.120.0000.12021.65
5.6.110.0070.07321.53
5.6.100.0100.10021.52
5.6.90.0130.10321.64
5.6.80.0070.05320.91
5.5.350.0330.09020.86
5.5.340.0030.11718.50
5.5.330.0130.10720.49
5.5.320.0430.08320.63
5.5.310.0230.11320.69
5.5.300.0070.06718.47
5.5.290.0070.06318.23
5.5.280.0130.10021.41
5.5.270.0030.11021.50
5.5.260.0100.10021.41
5.5.250.0130.12021.21
5.5.240.0270.09320.65
5.4.450.3770.06319.81
5.4.440.0130.08319.66
5.4.430.2330.06019.78
5.4.420.3770.06319.77
5.4.410.5430.07720.03
5.4.400.5530.06319.89
5.4.390.3630.06319.48
5.4.380.4700.06019.33
5.4.370.3530.06319.59
5.4.360.5930.06719.61
5.4.350.4200.05719.59
5.4.340.4230.06319.47
5.4.320.3830.05719.59
5.4.310.4600.05319.48
5.4.300.5430.07019.49
5.4.290.4030.06319.30
5.4.280.0030.06019.60
5.4.270.0830.05719.39
5.4.260.1930.05319.59
5.4.250.3100.06019.48
5.4.240.3430.05019.61
5.4.230.3230.04719.47
5.4.220.2500.05319.47
5.4.210.2070.05719.57
5.4.200.2830.05019.32
5.4.190.3800.05719.43
5.4.180.1900.05719.28
5.4.170.0170.06719.48
5.4.160.1470.08019.59
5.4.150.3830.05019.60
5.4.140.4770.06016.87
5.4.130.4270.05316.80
5.4.120.4200.04716.82
5.4.110.4630.06016.71
5.4.100.3570.05316.82
5.4.90.4170.06016.86
5.4.80.4500.05716.93
5.4.70.3370.06016.65
5.4.60.3830.05316.70
5.4.50.3600.05316.86
5.4.40.3500.05016.71
5.4.30.3800.05716.80
5.4.20.4270.05716.65
5.4.10.4170.05716.65
5.4.00.3870.05316.35
5.3.290.3700.06015.32
5.3.280.3230.05315.09
5.3.270.2270.06715.27
5.3.260.0100.05715.26
5.3.250.4570.06015.25
5.3.240.4530.05015.23
5.3.230.4100.05715.26
5.3.220.4600.05315.27
5.3.210.4470.05715.20
5.3.200.4030.05015.20
5.3.190.4270.06315.29
5.3.180.5270.06715.19
5.3.170.3930.06015.19
5.3.160.3900.05715.29
5.3.150.3500.06015.29
5.3.140.3100.05315.19
5.3.130.3700.05715.18
5.3.120.3970.06315.07
5.3.110.5330.05715.18
5.3.100.3570.05314.63
5.3.90.3530.05714.65
5.3.80.2530.06714.73
5.3.70.3870.05314.70
5.3.60.4230.05314.49
5.3.50.3570.05714.44
5.3.40.3900.04714.57
5.3.30.3270.06014.63
5.3.20.3800.04714.33
5.3.10.4670.05014.38
5.3.00.4700.05714.27
5.2.170.4100.05311.64
5.2.160.3300.05311.68
5.2.150.2930.05011.67
5.2.140.3400.05711.67
5.2.130.2830.05011.52
5.2.120.3330.06711.57
5.2.110.4030.05711.64
5.2.100.3570.05711.61
5.2.90.4170.05711.57
5.2.80.3700.06311.57
5.2.70.3370.05311.71
5.2.60.1830.05311.52
5.2.50.3130.05711.71
5.2.40.2400.06711.54
5.2.30.3130.06311.62
5.2.20.3030.06311.48
5.2.10.3430.04311.36
5.2.00.3270.04711.02
5.1.60.3330.05710.84
5.1.50.3370.05310.77
5.1.40.2630.05710.64
5.1.30.2330.06710.95
5.1.20.2970.05711.05
5.1.10.2330.05710.61
5.1.00.2270.05710.67
5.0.50.1570.0479.15
5.0.40.1670.0539.17
5.0.30.1770.0678.96
5.0.20.1370.0508.80
5.0.10.1800.0579.02
5.0.00.1570.0609.00
4.4.90.1570.0135.78
4.4.80.0970.0205.89
4.4.70.1900.0205.79
4.4.60.1870.0175.79
4.4.50.1800.0175.82
4.4.40.1770.0275.80
4.4.30.1500.0175.81
4.4.20.1270.0135.89
4.4.10.1470.0175.88
4.4.00.1500.0235.83
4.3.110.1300.0175.79
4.3.100.0630.0135.82
4.3.90.1530.0135.79
4.3.80.1700.0275.79
4.3.70.1330.0175.79
4.3.60.1570.0135.79
4.3.50.1570.0135.79
4.3.40.1530.0205.79
4.3.30.0470.0175.79
4.3.20.0830.0135.79
4.3.10.0770.0175.79
4.3.00.0870.0175.79

preferences:
52.8 ms | 400 KiB | 5 Q