3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ""; for($i=0;$i<1000;$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)
8.3.60.0200.48120.51
8.3.50.0170.52118.24
8.3.40.0070.49220.46
8.3.30.0100.47222.07
8.3.20.0030.25622.14
8.3.10.0070.26224.10
8.3.00.0070.26824.53
8.2.180.0170.57018.50
8.2.170.0130.55822.96
8.2.160.0030.54624.38
8.2.150.0070.27824.18
8.2.140.0070.30124.66
8.2.130.0070.27526.16
8.2.120.0100.27522.81
8.2.110.0030.44523.99
8.2.100.0070.34619.59
8.2.90.0000.33519.75
8.2.80.0070.33419.77
8.2.70.0070.34320.03
8.2.60.0070.33820.04
8.2.50.0000.34019.93
8.2.40.0030.33722.67
8.2.30.0070.33321.54
8.2.20.0100.35819.70
8.2.10.0070.34719.87
8.2.00.0070.33219.88
8.1.270.0840.33825.67
8.1.260.0970.35326.35
8.1.250.0370.29728.09
8.1.240.1060.45227.96
8.1.230.1430.37522.63
8.1.220.0700.36921.15
8.1.210.0600.36120.94
8.1.200.0470.39920.63
8.1.190.0830.33320.50
8.1.180.0730.37120.68
8.1.170.0360.41221.92
8.1.160.1020.52322.11
8.1.150.0730.35821.95
8.1.140.0600.36420.64
8.1.130.0630.38121.13
8.1.120.0740.36420.79
8.1.110.0520.39920.72
8.1.100.0430.39320.82
8.1.90.0230.41120.67
8.1.80.0560.36520.69
8.1.70.0530.35320.74
8.1.60.0540.46120.93
8.1.50.0600.45320.85
8.1.40.0500.45820.86
8.1.30.0300.46920.94
8.1.20.0670.43920.95
8.1.10.0570.44920.90
8.1.00.0530.45520.75
8.0.300.0730.35823.07
8.0.290.0730.34819.89
8.0.280.0770.34421.64
8.0.270.0570.37120.46
8.0.260.0530.36320.07
8.0.250.0330.40120.24
8.0.240.0600.38720.16
8.0.230.0530.37020.06
8.0.220.0400.37620.05
8.0.210.0470.38020.02
8.0.200.0600.37920.08
8.0.190.1160.50020.06
8.0.180.0570.44219.99
8.0.170.0530.45720.00
8.0.160.0770.42520.06
8.0.150.0270.49420.10
8.0.140.0600.45420.04
8.0.130.0600.44916.62
8.0.120.0600.45419.98
8.0.110.0570.45420.02
8.0.100.0470.45620.06
8.0.90.0600.44720.08
8.0.80.1600.79120.00
8.0.70.0630.43620.14
8.0.60.0330.48019.96
8.0.50.0530.44820.09
8.0.30.1950.72020.26
8.0.20.1670.70720.21
8.0.10.0570.44620.20
8.0.00.2120.84319.91
7.4.330.1160.38620.48
7.4.320.0430.40519.63
7.4.300.0740.37119.54
7.4.290.0640.43219.63
7.4.280.0470.45819.64
7.4.270.0330.47319.64
7.4.260.0430.46516.57
7.4.250.0970.41619.51
7.4.240.0650.44919.61
7.4.230.0530.47319.64
7.4.220.1690.91419.80
7.4.210.1290.74019.75
7.4.200.0400.44919.69
7.4.190.0830.44919.90
7.4.160.1640.72619.78
7.4.150.1320.80119.76
7.4.140.1960.69719.60
7.4.130.1530.73819.65
7.4.120.1990.68019.69
7.4.110.2130.75019.63
7.4.100.1640.73419.61
7.4.90.1980.67119.53
7.4.80.1850.77219.71
7.4.70.1720.71519.76
7.4.60.3711.08419.73
7.4.50.0560.32619.70
7.4.40.0770.76222.77
7.4.30.2280.70119.64
7.3.330.0440.45916.50
7.3.320.0730.43516.39
7.3.310.0430.47019.31
7.3.300.0570.44719.52
7.3.290.1250.78319.47
7.3.280.2100.86919.50
7.3.270.1450.77919.87
7.3.260.1820.74119.57
7.3.250.1890.77519.55
7.3.240.1980.78419.54
7.3.230.1950.78419.68
7.3.210.1720.69719.87
7.3.200.1820.74519.59
7.3.190.1480.80019.61
7.3.180.2180.72419.51
7.3.170.1840.74119.70
7.3.160.1780.67819.58
7.2.330.1880.76019.32
7.2.320.2191.25219.61
7.2.310.1710.80819.39
7.2.300.1921.11819.36
7.2.290.1690.88619.51
7.0.120.0600.49326.13
7.0.110.0730.49025.98
7.0.100.0270.54725.99
7.0.90.0570.56326.08
7.0.80.0330.52726.19
7.0.70.0500.51726.06
7.0.60.0400.50326.14
7.0.50.0570.48326.07
7.0.40.0500.49325.98
7.0.30.0730.49726.14
7.0.20.0270.52026.05
7.0.10.0700.47325.95
7.0.00.0630.48326.03
5.6.130.0072.29728.28
5.6.10.0102.36727.72
5.5.220.1602.33324.74
5.5.150.2032.28024.73
5.5.50.0002.35024.55
5.5.40.2532.23024.60
5.4.110.2002.29723.26
5.4.100.2132.28723.38
5.4.90.1772.32323.74
5.4.80.1802.32023.73
5.4.70.2172.28323.60
5.4.60.2202.28023.88
5.4.50.2132.28723.36
5.4.40.1632.33723.42
5.4.30.2302.27023.70
5.4.20.0002.27723.82
5.4.10.2432.25723.42
5.4.00.1972.30323.13
5.3.210.2572.24321.59
5.3.200.2072.29321.31
5.3.190.2032.29721.43
5.3.180.2402.26021.46
5.3.170.0002.43721.98
5.3.160.2202.28021.38
5.3.150.2372.26321.53
5.3.140.2402.26021.47
5.3.130.2432.25721.38
5.3.120.1872.31321.34
5.3.110.2232.27721.53
5.3.100.2102.28720.84
5.3.90.2072.29320.71
5.3.80.2102.29020.58
5.3.70.2072.29320.74
5.3.60.1632.33720.84
5.3.50.1732.32720.67
5.3.40.1832.31720.55
5.3.30.1372.36320.68
5.3.20.1972.30320.47
5.3.10.1872.31320.54
5.3.00.1932.30720.53

preferences:
75.47 ms | 400 KiB | 5 Q