3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); for($i=0;$i<10000;$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)
8.3.60.0130.01016.50
8.3.50.0200.01016.34
8.3.40.0090.00918.80
8.3.30.0070.00718.73
8.3.20.0060.00318.73
8.3.10.0040.00418.56
8.3.00.0040.00719.27
8.2.180.0110.01116.75
8.2.170.0110.00422.96
8.2.160.0040.01118.92
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0000.00720.65
8.2.110.0000.01020.38
8.2.100.0000.01119.70
8.2.90.0000.00817.50
8.2.80.0050.00318.73
8.2.70.0080.00017.47
8.2.60.0000.00817.80
8.2.50.0050.00318.07
8.2.40.0090.00019.95
8.2.30.0040.00417.55
8.2.20.0030.00617.66
8.2.10.0070.00017.79
8.2.00.0050.00517.71
8.1.280.0130.01025.92
8.1.270.0000.00823.99
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0090.00018.89
8.1.230.0040.00717.83
8.1.220.0030.00617.79
8.1.210.0040.00418.77
8.1.200.0030.00617.13
8.1.190.0060.00317.13
8.1.180.0040.00418.10
8.1.170.0080.00018.74
8.1.160.0040.00419.06
8.1.150.0040.00418.56
8.1.140.0040.00417.45
8.1.130.0040.00417.79
8.1.120.0040.00417.28
8.1.110.0000.00717.33
8.1.100.0020.00517.35
8.1.90.0030.00317.37
8.1.80.0070.00017.34
8.1.70.0030.00317.28
8.1.60.0000.00817.36
8.1.50.0000.00817.35
8.1.40.0080.00017.53
8.1.30.0000.00817.61
8.1.20.0030.00717.63
8.1.10.0030.00517.43
8.1.00.0000.00817.54
8.0.300.0070.00018.77
8.0.290.0000.00816.63
8.0.280.0030.00318.49
8.0.270.0030.00317.11
8.0.260.0030.00516.81
8.0.250.0050.00316.96
8.0.240.0070.00016.83
8.0.230.0000.00717.02
8.0.220.0070.00016.89
8.0.210.0000.00716.76
8.0.200.0000.00816.93
8.0.190.0070.00016.94
8.0.180.0040.00416.79
8.0.170.0070.00316.80
8.0.160.0000.00716.82
8.0.150.0000.00816.84
8.0.140.0100.00016.78
8.0.130.0000.00613.35
8.0.120.0000.00916.84
8.0.110.0000.00816.74
8.0.100.0000.00716.91
8.0.90.0000.00716.93
8.0.80.0060.01416.95
8.0.70.0040.00416.86
8.0.60.0030.00516.87
8.0.50.0000.00816.70
8.0.30.0060.01216.82
8.0.20.0120.00716.95
8.0.10.0080.00016.88
8.0.00.0110.00916.85
7.4.330.5071.48718.16
7.4.320.5031.49922.37
7.4.300.4101.59422.11
7.4.290.3601.64421.66
7.4.280.3901.61221.75
7.4.270.4061.59521.66
7.4.260.4201.58418.54
7.4.250.4701.53321.56
7.4.240.4061.59521.73
7.4.230.4331.57021.56
7.4.220.5071.49220.97
7.4.210.4831.51620.93
7.4.200.4161.58321.81
7.4.190.5891.41221.62
7.4.160.4631.53720.92
7.4.150.5341.46220.85
7.4.140.5821.42121.02
7.4.130.4931.51220.96
7.4.120.5111.48320.80
7.4.110.7111.75521.34
7.4.100.6911.78421.19
7.4.90.7231.74121.18
7.4.80.6611.78621.30
7.4.70.6401.76220.84
7.4.60.7231.73821.33
7.4.50.6331.86623.02
7.4.40.4652.03121.43
7.4.30.7531.68221.23
7.4.00.4382.05519.79
7.3.330.4031.59918.55
7.3.320.4601.54318.48
7.3.310.3961.60521.46
7.3.300.4231.57921.56
7.3.290.4411.56420.78
7.3.280.4921.50320.42
7.3.270.5621.44220.98
7.3.260.6301.37820.85
7.3.250.5451.45520.96
7.3.240.5571.44520.84
7.3.230.6211.62020.93
7.3.210.7051.74221.03
7.3.200.6231.85020.84
7.3.190.6081.85421.09
7.3.180.6181.83821.08
7.3.170.6741.77421.23
7.3.160.7151.71421.02
7.3.120.4322.06519.96
7.2.330.5491.91721.10
7.2.320.6551.80720.97
7.2.310.6161.83921.18
7.2.300.5921.86821.44
7.2.290.6001.86921.42
7.2.00.2432.25725.18
7.1.100.1872.31424.18
7.1.70.2332.26822.93
7.1.60.2232.27823.45
7.1.50.2602.24223.06
7.1.00.1832.31728.21
7.0.200.2262.27522.71
7.0.140.1972.30327.91
7.0.120.2302.27028.13
7.0.82.1670.33322.42
7.0.72.2400.26022.41
7.0.62.2230.27722.31
7.0.52.1400.36022.61
7.0.41.5100.99021.95
7.0.31.6330.86722.10
7.0.21.5500.95021.87
7.0.11.5330.96722.05
7.0.01.5570.94321.75
5.6.280.2102.29028.77
5.6.230.2032.29728.32
5.6.220.0002.50028.71
5.6.210.2502.25028.44
5.6.200.2172.27328.91
5.6.190.2172.28329.00
5.6.180.2302.27028.94
5.6.170.2302.27029.00
5.6.160.1902.31028.92
5.6.150.2402.26028.99
5.6.140.1802.32029.04
5.6.130.2372.26028.94
5.6.120.2372.26329.02
5.6.110.1832.31729.14
5.6.100.2502.25029.02
5.6.90.4172.08028.53
5.6.80.1502.35028.38
5.6.70.1932.30728.42
5.6.60.2472.25328.40
5.6.50.2472.25328.30
5.6.40.1972.30328.37
5.6.30.2032.29728.52
5.6.20.2272.27328.12
5.6.10.2232.27728.38
5.6.00.2232.27728.03
5.5.370.3032.08326.03
5.5.360.2932.11726.29
5.5.350.2972.09725.91
5.5.340.2872.11726.25
5.5.330.2402.14326.03
5.5.320.2502.10326.27
5.5.310.3302.07726.62
5.5.300.2972.11026.14
5.5.290.3072.13326.71
5.5.280.2932.12326.59
5.5.270.2932.03326.38
5.5.260.2372.09725.36
5.5.250.2900.70023.45
5.5.240.3430.82022.93
5.5.230.2972.10025.55
5.5.220.2632.11325.81
5.5.210.2772.07024.97
5.5.200.2801.99325.51
5.5.190.3302.02025.45
5.5.180.2572.21725.62
5.5.160.3132.10725.77
5.5.150.3202.01725.34
5.5.140.3002.10725.71
5.5.130.2232.13325.45
5.5.120.2001.79325.44
5.5.110.2371.61324.99
5.5.100.2301.57324.03
5.5.90.2071.55323.93
5.5.80.2431.87025.62
5.5.70.2401.76325.33
5.5.60.2171.90724.90
5.5.50.2972.10725.63
5.5.40.3102.10325.60
5.5.30.2632.15325.63
5.5.20.2732.16725.82
5.5.10.3002.12725.61
5.5.00.2802.13725.56
5.4.450.3572.02324.43
5.4.440.2802.16024.84
5.4.430.3072.06024.48
5.4.420.3132.09324.36
5.4.410.3731.41322.95
5.4.400.3130.76721.59
5.4.390.3071.39722.58
5.4.380.2972.12024.54
5.4.370.2372.11724.26
5.4.360.3202.05724.20
5.4.350.2802.19324.31
5.4.340.2702.05023.16
5.4.320.3432.09324.55
5.4.310.3702.03724.20
5.4.300.2802.11724.33
5.4.290.2502.12324.16
5.4.280.3032.03724.24
5.4.270.1331.41722.75
5.4.260.1701.40322.94
5.4.250.1701.77022.72
5.4.240.2101.43022.54
5.4.230.2471.69024.14
5.4.220.2331.67022.87
5.4.210.2231.98323.00
5.4.200.2272.20324.40
5.4.190.3202.10324.25
5.4.180.2972.15724.27
5.4.170.3002.13324.25
5.4.160.3102.10724.34
5.4.150.2802.16024.41
5.4.140.2732.16321.31
5.4.130.2402.16321.84
5.4.120.2532.21021.68
5.4.110.0132.45722.71
5.4.100.3032.14321.69
5.4.90.2602.19021.98
5.4.80.1902.22321.68
5.4.70.2702.14721.85
5.4.60.2832.13721.75
5.4.50.2832.08320.55
5.4.40.2472.22321.98
5.4.30.2372.20321.91
5.4.20.3172.14722.22
5.4.10.2772.18721.90
5.4.00.2702.12721.25
5.3.290.2932.11719.61
5.3.280.2231.84319.41
5.3.270.2432.21719.67
5.3.260.2572.16719.70
5.3.250.2632.19319.68
5.3.240.3002.15319.67
5.3.230.2902.18319.92
5.3.220.2702.12319.61
5.3.210.2172.18319.41
5.3.200.2402.19019.37
5.3.190.2932.13019.42
5.3.180.2302.18719.60
5.3.170.2872.15019.27
5.3.160.2332.19718.41
5.3.150.2872.15019.41
5.3.140.2472.18319.50
5.3.130.2332.22019.38
5.3.120.2472.18019.55
5.3.110.3202.10319.51
5.3.100.3072.11019.52
5.3.90.3002.10719.36
5.3.80.2802.13018.97
5.3.70.3072.14319.38
5.3.60.2932.15719.27
5.3.50.2902.14019.12
5.3.40.3202.11019.09
5.3.30.2672.13718.98
5.3.20.2532.17019.09
5.3.10.2902.12318.70
5.3.00.3132.16718.67
5.2.170.2932.13716.17
5.2.160.2502.17015.92
5.2.150.3202.08015.51
5.2.140.2602.13314.93
5.2.130.3072.14316.13
5.2.120.2872.13716.01
5.2.110.2602.19315.77
5.2.100.2772.13015.47
5.2.90.2332.24015.46
5.2.80.2702.12715.93
5.2.70.3072.10715.54
5.2.60.3332.13715.34
5.2.50.2302.19014.31
5.2.40.1372.36316.75
5.2.30.1202.38016.79
5.2.20.1472.35316.58
5.2.10.2832.21718.75
5.2.00.2802.22018.24
5.1.60.1872.31317.71
5.1.50.2572.24317.18
5.1.40.2302.27017.19
5.1.30.2302.27017.54
5.1.20.2302.27017.98
5.1.10.2132.28717.45
5.1.00.2132.28717.96
5.0.50.2002.30015.66
5.0.40.2102.29015.56
5.0.30.2732.22715.62
5.0.20.2072.29315.46
5.0.10.2272.26015.63
5.0.00.2202.28015.86
4.4.90.0000.04010.71
4.4.80.0000.03710.71
4.4.70.0030.03310.71
4.4.60.0030.03310.71
4.4.50.0000.02310.71
4.4.40.0030.04710.71
4.4.30.0000.04010.71
4.4.20.0070.03010.71
4.4.10.0100.03010.71
4.4.00.0000.05310.71
4.3.110.0030.01710.71
4.3.100.0030.03710.72
4.3.90.0000.02010.72
4.3.80.0030.05310.73
4.3.70.0030.03310.74
4.3.60.0030.03010.75
4.3.50.0030.03310.77
4.3.40.0000.05310.77
4.3.30.0000.03310.78
4.3.20.0030.03710.79
4.3.10.0000.04010.79
4.3.00.0030.03310.79

preferences:
53.33 ms | 400 KiB | 5 Q