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)
8.3.70.0120.00616.58
8.3.60.0130.00918.56
8.3.50.0110.00821.99
8.3.40.0070.00718.92
8.3.30.0070.00718.96
8.3.20.0080.00018.85
8.3.10.0040.00420.65
8.3.00.0080.00023.52
8.2.180.0070.01116.88
8.2.170.0090.00622.96
8.2.160.0140.00020.43
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0080.00019.73
8.2.110.0100.00022.38
8.2.100.0040.00818.03
8.2.90.0000.00819.23
8.2.80.0000.00918.05
8.2.70.0000.00817.75
8.2.60.0080.00017.80
8.2.50.0030.00618.07
8.2.40.0070.00018.22
8.2.30.0030.00519.94
8.2.20.0000.00717.81
8.2.10.0000.00717.68
8.2.00.0050.00317.66
8.1.280.0150.00025.92
8.1.270.0060.00323.99
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00322.47
8.1.230.0060.00621.04
8.1.220.0060.00318.77
8.1.210.0000.00818.86
8.1.200.0060.00317.22
8.1.190.0050.00217.41
8.1.180.0030.00618.10
8.1.170.0060.00318.59
8.1.160.0000.00818.77
8.1.150.0080.00018.74
8.1.140.0070.00017.42
8.1.130.0030.00317.82
8.1.120.0040.00417.42
8.1.110.0030.00517.48
8.1.100.0000.00717.45
8.1.90.0000.00717.56
8.1.80.0000.00717.55
8.1.70.0040.00417.43
8.1.60.0000.00917.70
8.1.50.0050.00217.46
8.1.40.0040.00417.58
8.1.30.0040.00417.57
8.1.20.0060.00617.69
8.1.10.0000.00717.65
8.1.00.0000.00717.67
8.0.300.0060.00319.89
8.0.290.0060.00316.88
8.0.280.0050.00318.54
8.0.270.0000.00817.09
8.0.260.0040.00416.94
8.0.250.0000.00717.06
8.0.240.0060.00617.19
8.0.230.0000.00717.08
8.0.220.0070.00017.01
8.0.210.0000.00717.04
8.0.200.0030.00317.08
8.0.190.0040.00417.10
8.0.180.0000.00717.07
8.0.170.0040.00416.93
8.0.160.0020.00517.02
8.0.150.0060.00317.05
8.0.140.0000.00816.92
8.0.130.0000.00613.46
8.0.120.0000.00816.99
8.0.110.0050.00216.95
8.0.100.0000.00716.89
8.0.90.0040.00416.90
8.0.80.0090.00617.00
8.0.70.0000.00716.88
8.0.60.0000.00817.15
8.0.50.0040.00416.93
8.0.30.0100.00917.17
8.0.20.0120.00817.40
8.0.10.0040.00417.00
8.0.00.0090.00816.68
7.4.330.0030.00313.43
7.4.320.0030.00316.71
7.4.300.0070.00016.79
7.4.290.0030.00316.63
7.4.280.0000.00816.62
7.4.270.0030.00316.68
7.4.260.0000.00613.32
7.4.250.0040.00416.66
7.4.240.0000.00816.66
7.4.230.0040.00416.57
7.4.220.0120.00616.81
7.4.210.0080.00716.73
7.4.200.0030.00316.87
7.4.190.0030.00316.66
7.4.160.0130.00316.61
7.4.150.0070.01017.40
7.4.140.0080.00817.86
7.4.130.0120.00716.79
7.4.120.0180.00216.59
7.4.110.0100.00816.73
7.4.100.0110.01216.65
7.4.90.0190.00316.63
7.4.80.0070.01119.04
7.4.70.0090.00616.70
7.4.60.0120.00916.46
7.4.50.0040.00416.73
7.4.40.0060.01022.27
7.4.30.0090.00616.55
7.4.10.0060.01014.95
7.4.00.0050.01215.06
7.3.330.0000.00613.27
7.3.320.0050.00013.31
7.3.310.0030.00316.29
7.3.300.0030.00316.36
7.3.290.0080.00816.32
7.3.280.0100.00916.39
7.3.270.0070.01017.40
7.3.260.0070.01018.24
7.3.250.0090.00916.48
7.3.240.0130.00316.73
7.3.230.0150.00916.60
7.3.210.0080.00816.45
7.3.200.0070.01019.39
7.3.190.0150.00616.53
7.3.180.0060.00916.68
7.3.170.0070.01016.73
7.3.160.0060.00916.34
7.3.130.0090.00914.81
7.3.120.0070.00914.88
7.3.110.0060.01315.20
7.3.100.0040.01215.07
7.3.90.0000.01114.76
7.3.80.0040.00414.77
7.3.70.0090.00714.81
7.3.60.0070.01014.98
7.3.50.0090.00614.72
7.3.40.0000.00914.97
7.3.30.0060.00614.98
7.3.20.0040.00816.89
7.3.10.0030.01016.81
7.3.00.0080.00416.82
7.2.330.0070.01116.71
7.2.320.0100.00716.56
7.2.310.0090.00916.66
7.2.300.0140.00716.61
7.2.290.0000.02216.57
7.2.260.0130.00315.25
7.2.250.0060.01115.27
7.2.240.0040.01114.98
7.2.230.0070.00715.29
7.2.220.0000.01315.30
7.2.210.0090.00614.98
7.2.200.0070.00314.81
7.2.190.0040.00814.78
7.2.180.0040.00714.97
7.2.170.0030.00614.82
7.2.160.0090.00614.91
7.2.150.0070.00716.89
7.2.140.0090.00317.04
7.2.130.0090.00317.01
7.2.120.0110.00316.89
7.2.110.0160.00016.70
7.2.100.0110.00716.89
7.2.90.0000.00917.14
7.2.80.0060.00617.04
7.2.70.0080.00316.93
7.2.60.0060.00917.01
7.2.50.0030.00716.92
7.2.40.0030.01216.90
7.2.30.0070.00716.68
7.2.20.0060.01216.78
7.2.10.0040.01416.88
7.2.00.0120.00317.05
7.1.330.0070.00715.71
7.1.320.0030.00615.82
7.1.310.0050.00515.86
7.1.300.0060.00915.78
7.1.290.0040.00815.85
7.1.280.0060.01015.62
7.1.270.0080.00615.67
7.1.260.0000.01415.80
7.1.250.0060.00915.85
7.1.240.0040.00715.84
7.1.230.0100.00715.72
7.1.220.0030.01015.84
7.1.210.0030.01015.56
7.1.200.0130.00315.95
7.1.190.0060.00916.04
7.1.180.0040.00815.76
7.1.170.0080.00015.88
7.1.160.0070.00315.68
7.1.150.0080.00615.97
7.1.140.0030.01015.98
7.1.130.0090.00615.77
7.1.120.0110.00716.02
7.1.110.0060.00915.98
7.1.100.0030.01016.04
7.1.90.0070.01015.98
7.1.80.0000.01116.11
7.1.70.0000.00916.45
7.1.60.0080.00917.69
7.1.50.0070.01016.49
7.1.40.0030.00915.61
7.1.30.0110.00416.05
7.1.20.0110.00315.95
7.1.10.0030.00915.93
7.1.00.0020.02619.20
7.0.330.0030.00715.33
7.0.320.0100.00315.35
7.0.310.0070.00415.46
7.0.300.0060.00615.66
7.0.290.0030.01315.35
7.0.280.0000.01415.31
7.0.270.0090.00615.63
7.0.260.0060.01215.48
7.0.250.0030.01115.28
7.0.240.0070.01015.34
7.0.230.0000.01315.55
7.0.220.0070.00315.59
7.0.210.0100.00315.67
7.0.200.0000.00816.06
7.0.190.0070.01015.39
7.0.180.0000.01215.43
7.0.170.0040.00715.45
7.0.160.0070.00415.39
7.0.150.0100.00315.59
7.0.140.0070.03718.66
7.0.130.0000.00815.54
7.0.120.0060.00915.39
7.0.110.0100.00715.70
7.0.100.0070.01015.56
7.0.90.0050.00515.42
7.0.80.0110.00315.40
7.0.70.0050.00315.60
7.0.60.0130.03617.85
7.0.50.0030.03916.84
7.0.40.0020.03915.51
7.0.30.0030.04515.59
7.0.20.0050.02715.64
7.0.10.0050.02215.87
7.0.00.0030.04815.50
5.6.400.0070.01014.47
5.6.390.0060.00914.13
5.6.380.0040.01414.35
5.6.370.0030.00914.43
5.6.360.0040.01114.37
5.6.350.0030.01314.35
5.6.340.0030.01014.60
5.6.330.0030.00914.17
5.6.320.0000.01413.89
5.6.310.0080.00614.01
5.6.300.0060.00614.30
5.6.290.0080.01214.17
5.6.280.0100.03517.84
5.6.270.0070.01114.50
5.6.260.0070.01014.37
5.6.250.0060.00314.26
5.6.240.0000.01314.34
5.6.230.0000.01314.48
5.6.220.0060.00614.14
5.6.210.0050.03517.64
5.6.200.0100.04216.19
5.6.190.0100.03916.12
5.6.180.0020.02416.32
5.6.170.0060.03816.11
5.6.160.0070.04116.34
5.6.150.0070.04016.36
5.6.140.0040.04616.30
5.6.130.0050.03816.28
5.6.120.0050.04716.43
5.6.110.0100.04116.17
5.6.100.0060.03116.37
5.6.90.0050.03616.09
5.6.80.0120.03815.86
5.6.70.0100.04015.89
5.6.60.0080.02615.89
5.6.50.0060.04215.86
5.6.40.0030.03315.88
5.6.30.0080.03815.95
5.6.20.0070.02815.83
5.6.10.0060.04315.98
5.6.00.0050.04016.00
5.5.380.0000.01114.26
5.5.370.0030.00613.95
5.5.360.0040.01114.39
5.5.350.0120.03917.18
5.5.340.0070.04216.13
5.5.330.0110.02616.11
5.5.320.0050.04516.17
5.5.310.0070.02815.98
5.5.300.0050.04916.06
5.5.290.0090.04216.14
5.5.280.0080.03316.15
5.5.270.0050.04815.98
5.5.260.0030.03816.03
5.5.250.0050.03815.95
5.5.240.0020.03815.68
5.5.230.0060.04115.64
5.5.220.0080.01915.70
5.5.210.0050.02315.64
5.5.200.0040.04215.83
5.5.190.0050.03415.67
5.5.180.0030.03815.61
5.5.170.0100.00314.22
5.5.160.0050.03015.82
5.5.150.0080.03715.76
5.5.140.0030.04215.71
5.5.130.0130.03315.70
5.5.120.0090.03815.77
5.5.110.0050.04715.71
5.5.100.0070.04215.63
5.5.90.0030.04715.61
5.5.80.0080.03315.72
5.5.70.0070.03215.63
5.5.60.0130.03515.60
5.5.50.0020.03615.62
5.5.40.0080.04315.74
5.5.30.0030.03715.72
5.5.20.0060.03115.61
5.5.10.0070.04315.48
5.5.00.0030.03015.69
5.4.450.0070.04215.80
5.4.440.0100.03715.73
5.4.430.0050.03615.86
5.4.420.0080.03815.79
5.4.410.0060.04515.72
5.4.400.0070.04315.70
5.4.390.0030.03815.59
5.4.380.0050.03815.67
5.4.370.0100.03815.64
5.4.360.0050.03715.69
5.4.350.0060.02715.59
5.4.340.0030.02715.64
5.4.330.0000.00712.29
5.4.320.0020.02615.71
5.4.310.0050.03315.69
5.4.300.0050.03515.67
5.4.290.0110.03715.63
5.4.280.0050.03115.62
5.4.270.0070.02315.65
5.4.260.0030.03415.70
5.4.250.0050.02715.64
5.4.240.0130.03315.63
5.4.230.0080.03515.63
5.4.220.0050.03815.61
5.4.210.0050.04115.55
5.4.200.0050.04415.58
5.4.190.0070.03715.62
5.4.180.0050.04515.63
5.4.170.0090.03515.70
5.4.160.0050.03215.67
5.4.150.0020.03515.69
5.4.140.0050.02514.29
5.4.130.0080.03114.34
5.4.120.0080.02314.26
5.4.110.0070.03714.27
5.4.100.0050.04214.31
5.4.90.0040.02214.23
5.4.80.0030.04114.28
5.4.70.0050.03514.31
5.4.60.0050.04014.21
5.4.50.0110.02714.25
5.4.40.0050.02314.29
5.4.30.0070.02214.41
5.4.20.0080.02714.27
5.4.10.0080.03214.33
5.4.00.0090.03314.00
5.3.290.0080.03613.46
5.3.280.0090.03513.41
5.3.270.0070.04013.43
5.3.260.0090.03413.42
5.3.250.0060.02513.43
5.3.240.0030.03813.44
5.3.230.0060.03013.43
5.3.220.0030.02113.31
5.3.210.0060.02313.41
5.3.200.0110.02113.41
5.3.190.0070.03513.42
5.3.180.0020.03513.33
5.3.170.0050.03913.39
5.3.160.0050.03813.33
5.3.150.0070.03513.40
5.3.140.0050.04213.39
5.3.130.0080.03613.37
5.3.120.0070.04013.40
5.3.110.0100.03713.38
5.3.100.0080.02113.12
5.3.90.0030.02813.12
5.3.80.0050.04013.07
5.3.70.0030.02513.13
5.3.60.0070.03313.04
5.3.50.0050.03513.07
5.3.40.0030.02813.08
5.3.30.0020.02513.06
5.3.20.0030.02812.87
5.3.10.0050.03712.89
5.3.00.0050.03812.95
5.2.170.0170.05311.05
5.2.160.0030.06311.09
5.2.150.0070.05311.11
5.2.140.0030.03011.11
5.2.130.0070.06011.00
5.2.120.0070.06011.04
5.2.110.0000.05011.07
5.2.100.0030.04311.09
5.2.90.0030.05011.06
5.2.80.0030.06311.09
5.2.70.0030.06011.05
5.2.60.0030.05710.98
5.2.50.0030.04011.03
5.2.40.0070.05310.96
5.2.30.0100.03011.11
5.2.20.0070.03710.79
5.2.10.0030.05711.00
5.2.00.0070.05710.63
5.1.60.0030.0579.97
5.1.50.0070.04010.02
5.1.40.0030.0579.95
5.1.30.0000.04710.24
5.1.20.0100.05310.33
5.1.10.0000.03310.07
5.1.00.0070.0539.90
5.0.50.0070.0378.99
5.0.40.0030.0238.99
5.0.30.0030.0678.99
5.0.20.0030.0438.99
5.0.10.0030.0438.99
5.0.00.0030.0638.99
4.4.90.0070.0278.99
4.4.80.0000.0378.99
4.4.70.0030.0308.99
4.4.60.0000.0378.99
4.4.50.0030.0378.99
4.4.40.0000.0578.99
4.4.30.0000.0308.99
4.4.20.0130.0278.99
4.4.10.0000.0408.99
4.4.00.0000.0408.99
4.3.110.0030.0278.99
4.3.100.0000.0378.99
4.3.90.0070.0238.99
4.3.80.0030.0308.99
4.3.70.0030.0238.99
4.3.60.0070.0338.99
4.3.50.0070.0278.99
4.3.40.0070.0408.99
4.3.30.0030.0378.99
4.3.20.0030.0378.99
4.3.10.0030.0278.99
4.3.00.0000.0208.99

preferences:
36.76 ms | 401 KiB | 5 Q