3v4l.org

run code in 300+ PHP versions simultaneously
<?php $txt = <<<TXT jkDDDJJJJjjjjJJlk jhlkj_sdHHhhHhhHHHHHHH kjhlkjh_JJJjjkkkkIIIIiiii TXT; echo preg_replace('/(.)(.*)/', '\u\1\L\2\E', $txt);

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)
8.3.60.0070.01116.63
8.3.50.0100.00817.54
8.3.40.0160.00618.75
8.3.30.0110.00818.67
8.3.20.0050.00319.02
8.3.10.0050.00319.07
8.3.00.0030.00519.51
8.2.180.0060.01316.75
8.2.170.0070.01122.96
8.2.160.0110.00421.32
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00726.16
8.2.120.0040.00420.88
8.2.110.0040.00720.47
8.2.100.0060.00617.79
8.2.90.0050.00319.04
8.2.80.0000.00817.97
8.2.70.0070.00317.75
8.2.60.0000.00917.93
8.2.50.0110.00018.07
8.2.40.0000.00718.22
8.2.30.0050.00219.50
8.2.20.0030.00617.75
8.2.10.0050.00317.64
8.2.00.0000.00817.81
8.1.280.0040.01425.92
8.1.270.0000.00923.99
8.1.260.0050.00326.35
8.1.250.0030.00628.09
8.1.240.0100.00022.42
8.1.230.0060.00620.88
8.1.220.0000.00918.77
8.1.210.0030.00618.77
8.1.200.0060.00317.35
8.1.190.0040.00417.41
8.1.180.0050.00518.10
8.1.170.0040.00418.77
8.1.160.0000.00718.86
8.1.150.0080.00018.78
8.1.140.0000.00717.42
8.1.130.0000.00717.92
8.1.120.0000.00717.56
8.1.110.0030.00517.49
8.1.100.0040.00417.57
8.1.90.0030.00317.49
8.1.80.0030.00517.59
8.1.70.0030.00317.48
8.1.60.0030.00517.69
8.1.50.0030.00517.57
8.1.40.0000.00717.60
8.1.30.0040.00417.74
8.1.20.0000.00717.72
8.1.10.0000.00717.58
8.1.00.0110.00017.60
8.0.300.0050.00319.99
8.0.290.0000.00717.18
8.0.280.0030.00318.38
8.0.270.0070.00017.01
8.0.260.0030.00317.14
8.0.250.0040.00417.10
8.0.240.0030.00317.18
8.0.230.0000.00717.00
8.0.220.0000.00717.07
8.0.210.0000.00716.94
8.0.200.0030.00317.11
8.0.190.0070.00017.07
8.0.180.0000.00717.10
8.0.170.0060.00317.02
8.0.160.0000.00716.99
8.0.150.0060.00316.95
8.0.140.0030.00517.04
8.0.130.0030.00313.52
8.0.120.0000.00716.93
8.0.110.0000.00816.88
8.0.100.0000.00717.03
8.0.90.0000.00817.09
8.0.80.0040.01116.96
8.0.70.0000.00717.04
8.0.60.0040.00416.93
8.0.50.0050.00217.16
8.0.30.0200.00617.47
8.0.20.0210.01117.36
8.0.10.0040.00417.14
8.0.00.0080.01216.98
7.4.330.0020.00213.20
7.4.320.0050.00216.73
7.4.300.0030.00316.80
7.4.290.0000.00716.66
7.4.280.0040.00416.68
7.4.270.0020.00516.66
7.4.260.0030.00313.45
7.4.250.0000.00816.64
7.4.240.0010.00716.61
7.4.230.0040.00416.79
7.4.220.0120.00616.80
7.4.210.0070.00816.71
7.4.200.0030.00316.65
7.4.190.0000.00716.87
7.4.160.0040.01116.68
7.4.150.0110.00616.54
7.4.140.0100.00716.79
7.4.130.0070.01016.54
7.4.120.0070.01316.76
7.4.110.0100.00716.55
7.4.100.0100.01316.75
7.4.90.0070.01016.76
7.4.80.0100.00719.39
7.4.70.0080.00816.63
7.4.60.0160.00016.53
7.4.50.0090.00316.55
7.4.40.0000.01516.57
7.4.30.0060.01116.59
7.4.00.0060.01015.34
7.3.330.0070.00013.21
7.3.320.0030.00513.25
7.3.310.0000.00616.27
7.3.300.0030.00316.36
7.3.290.0030.01216.32
7.3.280.0070.00816.40
7.3.270.0250.01516.61
7.3.260.0070.01116.33
7.3.250.0110.00716.56
7.3.240.0070.01016.63
7.3.230.0070.01016.35
7.3.210.0130.00316.63
7.3.200.0030.01916.70
7.3.190.0120.00316.37
7.3.180.0120.00416.75
7.3.170.0030.01216.42
7.3.160.0130.01016.37
7.3.120.0030.01014.61
7.2.330.0120.00616.64
7.2.320.0140.01116.56
7.2.310.0160.00316.70
7.2.300.0110.00616.53
7.2.290.0070.01116.75
7.2.110.0260.00316.52
7.2.00.0100.00319.28
7.1.100.0220.00418.00
7.1.70.0040.00717.09
7.1.60.0070.01019.40
7.1.50.0180.01134.96
7.1.00.0100.07322.59
7.0.200.0090.00015.02
7.0.140.0000.07321.95
7.0.120.0030.06022.02
7.0.60.0170.07321.72
7.0.50.0070.05317.73
7.0.40.0030.05320.14
7.0.30.0200.05020.21
7.0.20.0270.03020.11
7.0.10.0170.07720.20
7.0.00.0070.07020.14
5.6.210.0100.07720.66
5.6.200.0070.08018.18
5.6.190.0000.04720.35
5.6.180.0200.04320.37
5.6.170.0170.06020.49
5.6.160.0100.03720.33
5.6.150.0030.05718.18
5.6.140.0030.04018.22
5.6.130.0100.08318.14
5.6.120.0130.07721.03
5.6.110.0230.07021.11
5.6.100.0070.05321.12
5.6.90.0030.04321.13
5.6.80.0070.08320.35
5.5.350.0000.04020.39
5.5.340.0000.05017.92
5.5.330.0030.07320.14
5.5.320.0230.04020.18
5.5.310.0330.07020.18
5.5.300.0130.06017.98
5.5.290.0030.05317.92
5.5.280.0000.04320.84
5.5.270.0100.08020.86
5.5.260.0130.03020.86
5.5.250.0130.06720.59
5.5.240.0070.04320.21
5.4.450.0070.05719.24
5.4.440.0130.07319.32
5.4.430.0030.04319.50
5.4.420.0030.04319.47
5.4.410.0030.06018.98
5.4.400.0170.06319.15
5.4.390.0030.04019.05
5.4.380.0070.05019.12
5.4.370.0100.07319.14
5.4.360.0100.07718.92
5.4.350.0170.04318.79
5.4.340.0000.07718.93
5.4.320.0030.05019.18
5.4.310.0070.03318.80
5.4.300.0000.04018.78
5.4.290.0030.03718.91
5.4.280.0070.03719.14
5.4.270.0030.03718.79
5.4.260.0130.02719.17
5.4.250.0030.03719.15
5.4.240.0070.03318.78
5.4.230.0100.03319.17
5.4.220.0070.04719.18
5.4.210.0070.03319.02
5.4.200.0030.03718.78
5.4.190.0030.03719.06
5.4.180.0070.03719.07
5.4.170.0000.04018.90
5.4.160.0070.03318.98
5.4.150.0030.03718.78
5.4.140.0070.03016.27
5.4.130.0000.03716.23
5.4.120.0030.03716.45
5.4.110.0100.02716.23
5.4.100.0000.03716.37
5.4.90.0030.03316.15
5.4.80.0030.03316.39
5.4.70.0070.03016.39
5.4.60.0000.03716.22
5.4.50.0030.03316.30
5.4.40.0030.03316.34
5.4.30.0030.03316.24
5.4.20.0100.02716.38
5.4.10.0070.06316.20
5.4.00.0070.05315.66
5.3.290.0000.06314.59
5.3.280.0030.03714.52
5.3.270.0000.04014.42
5.3.260.0030.03714.50
5.3.250.0000.04014.59
5.3.240.0070.03314.39
5.3.230.0030.04314.53
5.3.220.0070.03314.49
5.3.210.0070.03714.35
5.3.200.0070.03314.49
5.3.190.0130.02714.52
5.3.180.0070.03314.35
5.3.170.0070.03314.50
5.3.160.0030.04014.57
5.3.150.0000.04014.53
5.3.140.0170.03314.64
5.3.130.0170.04314.33
5.3.120.0070.05314.44
5.3.110.0100.07314.63
5.3.100.0100.04314.13
5.3.90.0070.07013.94
5.3.80.0030.07713.94
5.3.70.0100.06714.11
5.3.60.0000.05713.82
5.3.50.0030.04314.03
5.3.40.0070.05713.86
5.3.30.0130.06313.84
5.3.20.0100.05313.77
5.3.10.0030.04713.58
5.3.00.0070.06313.57
5.2.170.0030.04011.08
5.2.160.0000.03711.05
5.2.150.0000.03711.13
5.2.140.0100.02310.96
5.2.130.0000.07011.09
5.2.120.0070.03010.99
5.2.110.0030.06711.10
5.2.100.0000.04311.02
5.2.90.0000.04311.09
5.2.80.0070.03310.94
5.2.70.0030.03310.91
5.2.60.0070.05011.20
5.2.50.0000.04310.89
5.2.40.0030.06710.85
5.2.30.0100.06010.97
5.2.20.0070.06010.85
5.2.10.0030.06310.93
5.2.00.0100.05310.70
5.1.60.0000.0279.99
5.1.50.0030.02310.05
5.1.40.0000.05710.01
5.1.30.0000.03310.34
5.1.20.0100.05010.34
5.1.10.0070.02710.07
5.1.00.0100.03710.07
5.0.50.0000.0238.38
5.0.40.0000.0238.46
5.0.30.0000.0508.20
5.0.20.0030.0238.26
5.0.10.0070.0408.07
5.0.00.0030.0438.12
4.4.90.0000.0377.80
4.4.80.0070.0337.80
4.4.70.0030.0337.80
4.4.60.0000.0377.80
4.4.50.0070.0237.80
4.4.40.0030.0277.80
4.4.30.0030.0137.80
4.4.20.0000.0237.80
4.4.10.0000.0407.80
4.4.00.0030.0237.80
4.3.110.0030.0177.80
4.3.100.0000.0277.80
4.3.90.0000.0177.80
4.3.80.0030.0577.80
4.3.70.0070.0207.80
4.3.60.0030.0177.80
4.3.50.0100.0307.80
4.3.40.0030.0507.80
4.3.30.0070.0337.80
4.3.20.0000.0377.80
4.3.10.0030.0277.80
4.3.00.0030.0177.80

preferences:
57.46 ms | 401 KiB | 5 Q