3v4l.org

run code in 300+ PHP versions simultaneously
<?php function do_split($name) { return preg_split('/(([A-Z]+)[^A-Z]*)/', $name, null, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY); } function convert_case($name) { return implode( '_', array_map( 'strtolower', do_split($name) ) ); } $samples = array( 'FooBar', 'FooBAR', 'FOObar', ); print_r(array_map("do_split", $samples)); print_r(array_map("convert_case", $samples));

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)
8.3.60.0120.00318.68
8.3.50.0110.00822.05
8.3.40.0110.00318.88
8.3.30.0100.00318.94
8.3.20.0040.00420.25
8.3.10.0070.00021.95
8.3.00.0040.00417.80
8.2.180.0070.01416.88
8.2.170.0120.00322.96
8.2.160.0120.00620.36
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00421.08
8.2.110.0060.00322.38
8.2.100.0080.00418.03
8.2.90.0040.00419.27
8.2.80.0040.00417.97
8.2.70.0030.00617.63
8.2.60.0100.00017.91
8.2.50.0030.00718.07
8.2.40.0040.00417.97
8.2.30.0040.00418.22
8.2.20.0030.00517.89
8.2.10.0000.00718.15
8.2.00.0030.00517.79
8.1.280.0090.00625.92
8.1.270.0030.00623.83
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00623.82
8.1.230.0080.00319.08
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0000.00817.48
8.1.190.0000.00817.35
8.1.180.0000.00718.10
8.1.170.0050.00318.50
8.1.160.0040.00421.95
8.1.150.0000.00818.78
8.1.140.0070.00017.42
8.1.130.0000.00717.73
8.1.120.0040.00417.52
8.1.110.0000.00817.43
8.1.100.0000.00717.62
8.1.90.0040.00417.50
8.1.80.0050.00217.61
8.1.70.0070.00017.50
8.1.60.0050.00517.68
8.1.50.0030.00617.58
8.1.40.0050.00317.62
8.1.30.0000.00817.61
8.1.20.0040.00417.72
8.1.10.0040.00417.49
8.1.00.0040.00417.55
8.0.300.0030.00518.77
8.0.290.0060.00316.61
8.0.280.0040.00418.45
8.0.270.0000.00717.14
8.0.260.0030.00317.21
8.0.250.0070.00017.07
8.0.240.0000.00716.93
8.0.230.0000.00716.91
8.0.220.0030.00316.95
8.0.210.0000.00716.85
8.0.200.0030.00317.00
8.0.190.0000.00716.94
8.0.180.0040.00416.89
8.0.170.0080.00017.00
8.0.160.0040.00416.84
8.0.150.0000.00716.82
8.0.140.0000.00816.95
8.0.130.0060.00013.37
8.0.120.0000.00816.96
8.0.110.0060.00316.99
8.0.100.0040.00416.88
8.0.90.0000.00716.93
8.0.80.0070.01017.01
8.0.70.0040.00416.97
8.0.60.0000.00716.88
8.0.50.0090.00017.04
8.0.30.0140.00917.25
8.0.20.0070.01217.40
8.0.10.0000.00716.93
8.0.00.0090.00916.84
7.4.330.0000.00515.00
7.4.320.0060.00016.66
7.4.300.0000.00616.59
7.4.290.0030.00316.66
7.4.280.0030.00616.54
7.4.270.0000.00816.64
7.4.260.0000.00716.73
7.4.250.0050.00316.67
7.4.240.0030.00316.73
7.4.230.0030.00316.75
7.4.220.0100.01016.70
7.4.210.0070.00716.80
7.4.200.0050.00216.64
7.4.160.0110.00816.92
7.4.150.0140.00417.40
7.4.140.0080.00817.86
7.4.130.0100.00716.61
7.4.120.0120.00516.61
7.4.110.0120.00616.69
7.4.100.0070.01016.71
7.4.90.0060.01216.60
7.4.80.0090.00919.39
7.4.70.0060.00916.68
7.4.60.0090.00916.73
7.4.50.0060.00316.40
7.4.40.0030.01316.52
7.4.30.0130.00316.50
7.4.00.0120.00415.34
7.3.330.0030.00313.14
7.3.320.0050.00013.15
7.3.310.0030.00316.43
7.3.300.0030.00316.39
7.3.290.0060.00916.34
7.3.280.0070.01016.34
7.3.270.0100.00717.40
7.3.260.0060.01216.79
7.3.250.0090.00816.36
7.3.240.0170.00816.32
7.3.230.0170.00016.44
7.3.210.0090.00916.75
7.3.200.0060.01319.39
7.3.190.0040.01416.59
7.3.180.0030.01316.77
7.3.170.0090.01216.48
7.3.160.0110.00416.48
7.3.120.0100.00314.89
7.2.330.0080.01116.50
7.2.320.0060.01116.61
7.2.310.0040.01316.68
7.2.300.0070.01016.43
7.2.290.0090.00616.74
7.2.110.0050.01616.37
7.2.100.0180.00416.25
7.2.90.0160.01016.32
7.2.80.0140.00716.17
7.2.70.0170.00716.91
7.2.60.0120.02016.73
7.2.50.0250.00816.81
7.2.40.0200.01316.97
7.2.30.0280.00016.92
7.2.20.0130.01316.53
7.2.10.0260.01016.88
7.2.00.0130.01118.21
7.1.230.0150.01015.83
7.1.220.0090.01716.01
7.1.210.0110.00915.41
7.1.200.0090.00915.77
7.1.190.0180.00915.63
7.1.180.0190.01115.80
7.1.170.0170.00815.87
7.1.160.0150.01015.87
7.1.150.0200.00316.01
7.1.140.0200.01015.88
7.1.130.0220.00715.94
7.1.120.0340.00415.88
7.1.110.0510.01315.93
7.1.100.0290.00817.07
7.1.90.0340.00016.05
7.1.80.0970.00415.87
7.1.70.0090.00716.38
7.1.60.0180.01417.48
7.1.50.0140.00716.42
7.1.40.0150.01215.86
7.1.30.0130.01315.85
7.1.20.0130.01615.94
7.1.10.0110.01415.88
7.1.00.0110.04218.98
7.0.310.0130.00915.18
7.0.300.0200.00715.45
7.0.290.0170.00515.28
7.0.280.0160.00315.52
7.0.270.0180.01115.25
7.0.260.0540.01315.57
7.0.250.0320.00815.32
7.0.240.0740.00715.76
7.0.230.0230.00815.76
7.0.220.0470.01215.74
7.0.210.0060.01515.60
7.0.200.0220.00416.06
7.0.190.0130.00715.44
7.0.180.0340.00615.33
7.0.170.0120.01215.15
7.0.160.0090.00915.22
7.0.150.0110.01415.25
7.0.140.0050.04218.66
7.0.130.0310.00314.85
7.0.120.0610.01015.37
7.0.110.0520.00714.93
7.0.100.0220.00315.37
7.0.90.0370.00715.34
7.0.80.0180.00915.28
7.0.70.0160.00815.10
7.0.60.0080.05017.56
7.0.50.0050.03516.66
7.0.40.0240.04816.64
7.0.30.0270.01816.77
7.0.20.0200.04516.64
7.0.10.0250.02316.89
7.0.00.0160.05016.86
5.6.380.0110.01114.24
5.6.370.0140.01114.60
5.6.360.0130.01314.09
5.6.350.0140.00914.39
5.6.340.0220.00414.70
5.6.330.0320.00614.41
5.6.320.0550.00014.35
5.6.310.0210.00014.01
5.6.300.0180.01013.95
5.6.290.0080.01114.40
5.6.280.0170.03817.40
5.6.270.0130.00614.29
5.6.260.0220.00713.91
5.6.250.0610.00714.10
5.6.240.0330.01314.04
5.6.230.0430.00314.09
5.6.220.0040.01614.22
5.6.210.0140.02217.22
5.6.200.0180.02616.13
5.6.190.0240.04017.20
5.6.180.1900.02217.37
5.6.170.0320.03817.13
5.6.160.0150.02517.26
5.6.150.0170.04916.18
5.6.140.0140.03716.23
5.6.130.0060.02716.10
5.6.120.0200.04417.63
5.6.110.0130.04617.56
5.6.100.0230.03317.42
5.6.90.0180.04317.61
5.6.80.0130.03317.32
5.6.70.0290.00614.06
5.6.60.0310.00314.21
5.6.50.0170.01014.31
5.6.40.0320.00913.84
5.6.30.0290.00714.16
5.6.20.0310.00714.02
5.6.10.0260.01014.04
5.6.00.0220.00713.86
5.5.380.0310.00011.00
5.5.370.0140.01110.75
5.5.360.0060.00610.67
5.5.350.0210.04215.65
5.5.340.0170.02914.35
5.5.330.0220.02615.70
5.5.320.0140.03915.50
5.5.310.0120.02615.65
5.5.300.0060.03314.42
5.5.290.0160.02514.57
5.5.280.0110.03215.97
5.5.270.0100.02415.87
5.5.260.0190.04015.92
5.5.250.0160.03615.66
5.5.240.2220.02315.42
5.5.230.0180.00610.71
5.5.220.0190.01010.62
5.5.210.0200.00011.05
5.5.200.0100.00310.98
5.5.190.0380.00010.99
5.5.180.0300.00010.86
5.5.170.0160.00914.23
5.5.160.0180.00011.02
5.5.150.0220.00010.98
5.5.140.0250.00810.89
5.5.130.0130.00710.88
5.5.120.0410.00910.75
5.5.110.0200.00310.93
5.5.100.0260.00010.66
5.5.90.0140.00410.75
5.5.80.0100.00711.21
5.5.70.0170.00711.09
5.5.60.0190.00610.70
5.5.50.0200.00310.76
5.5.40.0160.00311.13
5.5.30.0110.00810.75
5.5.20.0170.00310.84
5.5.10.0200.00010.98
5.5.00.0150.00310.86
5.4.450.0370.03214.99
5.4.440.0310.03015.07
5.4.430.0140.03514.89
5.4.420.0290.03015.00
5.4.410.0150.02514.96
5.4.400.0200.03714.71
5.4.390.0180.03314.85
5.4.380.0260.02814.79
5.4.370.0140.02514.75
5.4.360.0110.02814.53
5.4.350.0130.01811.26
5.4.340.0120.02011.31
5.4.330.0200.00010.57
5.4.320.0110.01911.73
5.4.310.0160.02111.82
5.4.300.0090.02211.73
5.4.290.0130.02411.52
5.4.280.0060.02411.66
5.4.270.0090.02011.61
5.4.260.0090.02311.61
5.4.250.0120.01911.50
5.4.240.0150.02111.60
5.4.230.0150.02011.54
5.4.220.0120.02211.78
5.4.210.0120.02211.70
5.4.200.0090.02111.49
5.4.190.0120.02211.45
5.4.180.0090.02511.67
5.4.170.0060.02411.71
5.4.160.0090.02011.63
5.4.150.0150.02011.65
5.4.140.0180.01911.54
5.4.130.0100.02011.66
5.4.120.0190.02411.30
5.4.110.0090.02111.40
5.4.100.0130.02311.65
5.4.90.0110.02111.43
5.4.80.0090.01911.54
5.4.70.0150.01611.41
5.4.60.0070.01911.45
5.4.50.0080.02011.47
5.4.40.0170.02211.40
5.4.30.0260.02211.39
5.4.20.0170.02211.29
5.4.10.0190.02111.33
5.4.00.0080.02611.08
5.3.290.0110.02511.76
5.3.280.0080.02311.64
5.3.270.0080.02311.67
5.3.260.0060.02211.65
5.3.250.0120.01811.67
5.3.240.0090.02111.61
5.3.230.0080.02211.64
5.3.220.0110.01911.59
5.3.210.0110.01811.59
5.3.200.0070.02111.55
5.3.190.0130.01811.66
5.3.180.0080.02211.70
5.3.170.0080.02211.61
5.3.160.0090.02011.52
5.3.150.0090.02111.63
5.3.140.0110.01911.64
5.3.130.0110.02511.53
5.3.120.0210.02111.59
5.3.110.0130.02211.55
5.3.100.0130.02311.38
5.3.90.0290.01911.36
5.3.80.0310.02011.27
5.3.70.0230.02111.30
5.3.60.0120.02211.36
5.3.50.0140.01911.23
5.3.40.0170.02011.22
5.3.30.0160.02111.15
5.3.20.0220.01611.18
5.3.10.0140.02211.05
5.3.00.0090.02010.93
5.2.170.0170.0179.40
5.2.160.0060.0199.38
5.2.150.0090.0209.37
5.2.140.0090.0229.38
5.2.130.0100.0149.39
5.2.120.0100.0189.38
5.2.110.0150.0179.23
5.2.100.0110.0199.31
5.2.90.0070.0199.30
5.2.80.0100.0159.28
5.2.70.0060.0199.13
5.2.60.0050.0209.24
5.2.50.0080.0179.26
5.2.40.0070.0179.27
5.2.30.0080.0219.23
5.2.20.0070.0169.21
5.2.10.0080.0149.07
5.2.00.0080.0149.02
5.1.60.0050.0138.41
5.1.50.0050.0168.41
5.1.40.0050.0158.40
5.1.30.0050.0168.58
5.1.20.0080.0148.59
5.1.10.0040.0148.48
5.1.00.0020.0178.45
5.0.50.0060.0107.69
5.0.40.0060.0127.62
5.0.30.0020.0217.52
5.0.20.0050.0127.51
5.0.10.0050.0107.49
5.0.00.0050.0177.49
4.4.90.0030.0106.76
4.4.80.0040.0136.74
4.4.70.0030.0116.74
4.4.60.0040.0076.74
4.4.50.0020.0106.75
4.4.40.0020.0156.72
4.4.30.0020.0136.74
4.4.20.0030.0096.79
4.4.10.0050.0086.79
4.4.00.0040.0136.75
4.3.110.0060.0066.70
4.3.100.0020.0106.70
4.3.90.0020.0096.68
4.3.80.0030.0156.66
4.3.70.0030.0096.68
4.3.60.0020.0106.68
4.3.50.0030.0086.68
4.3.40.0040.0136.63
4.3.30.0040.0106.02
4.3.20.0030.0096.01
4.3.10.0010.0135.99
4.3.00.0090.0127.97

preferences:
39.67 ms | 401 KiB | 5 Q