3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "Legend Of Zelda"; $array = array("to","of","at"); echo preg_replace_callback('~\b(?:' . implode("|", $array) . ')\b~ui', function ($m) { return mb_strtolower($m[0]); }, $string);

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)
8.3.60.0130.00416.75
8.3.50.0220.00019.93
8.3.40.0030.01418.96
8.3.30.0040.01118.87
8.3.20.0110.00024.18
8.3.10.0030.00524.66
8.3.00.0080.00126.25
8.2.180.0120.00325.92
8.2.170.0030.01519.21
8.2.160.0040.01422.96
8.2.150.0050.00325.66
8.2.140.0040.00424.66
8.2.130.0020.00726.25
8.2.120.0080.00023.76
8.2.110.0060.00523.41
8.2.100.0030.00822.32
8.2.90.0050.00322.31
8.2.80.0020.00722.27
8.2.70.0060.00622.11
8.2.60.0050.00422.29
8.2.50.0070.00322.22
8.2.40.0090.00022.97
8.2.30.0080.00022.85
8.2.20.0040.00422.21
8.2.10.0050.00322.83
8.2.00.0050.00621.22
8.1.280.0070.00725.92
8.1.270.0040.00424.66
8.1.260.0030.00626.35
8.1.250.0000.00926.35
8.1.240.0070.00124.17
8.1.230.0030.00725.13
8.1.220.0060.00422.07
8.1.210.0060.00322.63
8.1.200.0040.00721.98
8.1.190.0060.00421.86
8.1.180.0050.00422.22
8.1.170.0090.00322.45
8.1.160.0070.00422.76
8.1.150.0000.00822.73
8.1.140.0030.00622.71
8.1.130.0090.00421.48
8.1.120.0050.00620.59
8.1.110.0060.00520.56
8.1.100.0060.00620.54
8.1.90.0080.00420.57
8.1.80.0090.00320.56
8.1.70.0050.00620.56
8.1.60.0020.01020.59
8.1.50.0100.00220.59
8.1.40.0090.00220.62
8.1.30.0100.00320.66
8.1.20.0050.00820.68
8.1.10.0070.00620.60
8.1.00.0090.00220.57
8.0.300.0050.00423.19
8.0.290.0020.00721.61
8.0.280.0030.00522.44
8.0.270.0020.00621.72
8.0.260.0090.00221.19
8.0.250.0000.01020.23
8.0.240.0080.00420.23
8.0.230.0060.00520.22
8.0.220.0090.00120.24
8.0.210.0060.00420.22
8.0.200.0020.00720.26
8.0.190.0070.00420.24
8.0.180.0090.00220.16
8.0.170.0050.00620.23
8.0.160.0070.00420.20
8.0.150.0070.00320.16
8.0.140.0090.00220.18
8.0.130.0040.00518.97
8.0.120.0100.00020.19
8.0.110.0030.00720.26
8.0.100.0040.00620.19
8.0.90.0060.00420.15
8.0.80.0060.00919.48
8.0.70.0080.00220.15
8.0.60.0090.00120.16
8.0.50.0100.00320.20
8.0.30.0100.00420.25
8.0.20.0100.00619.59
8.0.10.0050.00520.20
8.0.00.0110.00620.16
7.4.330.0060.00319.23
7.4.320.0100.00420.02
7.4.300.0100.00319.96
7.4.290.0090.00419.94
7.4.280.0110.00420.02
7.4.270.0070.00620.02
7.4.260.0080.00418.87
7.4.250.0100.00419.98
7.4.240.0090.00420.02
7.4.230.0100.00319.95
7.4.220.0070.00419.15
7.4.210.0110.00618.42
7.4.200.0100.00219.91
7.4.190.0150.00021.52
7.4.180.0110.00321.58
7.4.160.0130.00121.50
7.4.150.0110.00421.59
7.4.140.0140.00121.48
7.4.130.0100.00719.10
7.4.120.0160.00119.93
7.4.110.0100.00619.90
7.4.100.0100.00619.95
7.4.90.0110.00519.91
7.4.80.0090.00719.96
7.4.70.0090.00819.95
7.4.60.0120.00419.98
7.4.50.0140.00319.82
7.4.40.0120.00419.92
7.4.30.0130.00419.97
7.4.20.0120.00419.80
7.4.10.0100.00719.84
7.4.00.0090.00819.92
7.3.330.0070.00519.83
7.3.320.0070.00518.76
7.3.310.0060.00719.86
7.3.300.0100.00319.76
7.3.290.0080.00718.44
7.3.280.0100.00519.78
7.3.270.0120.00321.43
7.3.260.0120.00419.80
7.3.250.0140.00221.41
7.3.240.0140.00221.41
7.3.230.0120.00519.78
7.3.220.0130.00321.27
7.3.210.0120.00419.71
7.3.200.0110.00419.73
7.3.190.0160.00219.86
7.3.180.0160.00319.83
7.3.170.0130.00619.81
7.3.160.0130.00619.80
7.3.150.0070.00919.74
7.3.140.0140.00319.83
7.3.130.0160.00419.83
7.3.120.0110.00619.71
7.3.110.0150.00119.79
7.3.100.0080.00919.71
7.3.90.0120.00519.75
7.3.80.0070.00919.79
7.3.70.0090.00919.79
7.3.60.0110.00519.82
7.3.50.0130.00419.80
7.3.40.0150.00519.81
7.3.30.0150.00419.79
7.3.20.0150.00520.38
7.3.10.0140.00320.42
7.3.00.0120.00420.37
7.2.340.0120.00321.40
7.2.330.0110.00719.89
7.2.320.0100.00619.99
7.2.310.0130.00419.94
7.2.300.0120.00419.85
7.2.290.0140.00319.91
7.2.280.0110.00619.94
7.2.270.0110.00519.94
7.2.260.0110.00619.93
7.2.250.0110.00719.90
7.2.240.0100.00719.97
7.2.230.0100.00719.90
7.2.220.0150.00119.92
7.2.210.0120.00619.85
7.2.200.0110.00619.96
7.2.190.0120.00419.90
7.2.180.0140.00419.90
7.2.170.0110.00719.98
7.2.160.0110.00520.00
7.2.150.0150.00320.54
7.2.140.0130.00620.64
7.2.130.0090.00720.62
7.2.120.0080.00920.54
7.2.110.0170.00520.58
7.2.100.0060.01120.62
7.2.90.0140.00320.64
7.2.80.0260.00820.60
7.2.70.0120.00620.60
7.2.60.0110.00620.60
7.2.50.0080.00920.58
7.2.40.0110.00820.60
7.2.30.0110.00720.58
7.2.20.0120.00520.58
7.2.10.0140.00520.58
7.2.00.0110.00820.53

preferences:
59.66 ms | 400 KiB | 5 Q