3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_replace_callback('/(_?[a-z])/', function($u) { var_dump($u); return str_replace('', '_', strtoupper($u)); } , 'rob_tr');

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)
8.3.40.0070.00719.23
8.3.30.0070.00720.14
8.3.20.0040.00420.34
8.3.10.0000.00820.97
8.3.00.0040.00422.29
8.2.170.0110.00422.96
8.2.160.0100.00322.22
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0000.00820.92
8.2.110.0030.00619.32
8.2.100.0090.00317.78
8.2.90.0080.00017.90
8.2.80.0060.00317.97
8.2.70.0040.00417.86
8.2.60.0030.00618.03
8.2.50.0060.00318.07
8.2.40.0060.00318.21
8.2.30.0040.00419.48
8.2.20.0040.00417.79
8.2.10.0000.00818.02
8.2.00.0030.00517.84
8.1.270.0030.00623.99
8.1.260.0000.00726.35
8.1.250.0030.00628.09
8.1.240.0110.00022.02
8.1.230.0000.01121.03
8.1.220.0000.00817.74
8.1.210.0040.00419.03
8.1.200.0000.00917.36
8.1.190.0050.00317.48
8.1.180.0040.00418.10
8.1.170.0040.00418.71
8.1.160.0020.00518.86
8.1.150.0040.00418.82
8.1.140.0080.00017.55
8.1.130.0070.00017.80
8.1.120.0050.00217.61
8.1.110.0080.00017.49
8.1.100.0050.00217.54
8.1.90.0040.00417.55
8.1.80.0070.00017.63
8.1.70.0000.00717.54
8.1.60.0030.00617.57
8.1.50.0060.00317.56
8.1.40.0040.00417.60
8.1.30.0050.00317.63
8.1.20.0000.00817.77
8.1.10.0040.00417.64
8.1.00.0050.00217.66
8.0.300.0080.00019.95
8.0.290.0070.00017.00
8.0.280.0050.00318.42
8.0.270.0030.00317.17
8.0.260.0060.00016.97
8.0.250.0000.00717.11
8.0.240.0050.00317.11
8.0.230.0040.00417.11
8.0.220.0070.00016.96
8.0.210.0030.00317.06
8.0.200.0030.00317.11
8.0.190.0040.00417.18
8.0.180.0040.00417.18
8.0.170.0040.00417.08
8.0.160.0070.00017.20
8.0.150.0050.00217.10
8.0.140.0070.00317.11
8.0.130.0050.00013.50
8.0.120.0040.00417.02
8.0.110.0000.00816.94
8.0.100.0000.00717.02
8.0.90.0000.00717.05
8.0.80.0000.01517.04
8.0.70.0030.00517.05
8.0.60.0000.00716.91
8.0.50.0040.00417.14
8.0.30.0050.01417.43
8.0.20.0150.00817.44
8.0.10.0030.00517.00
8.0.00.0120.00816.86
7.4.330.0000.00516.84
7.4.320.0040.00416.54
7.4.300.0000.00616.66
7.4.290.0070.00016.79
7.4.280.0070.00016.53
7.4.270.0030.00316.76
7.4.260.0030.00413.41
7.4.250.0040.00416.54
7.4.240.0030.00316.78
7.4.230.0070.00016.54
7.4.220.0100.01416.78
7.4.210.0070.00916.76
7.4.200.0070.00016.86
7.4.190.0040.00416.61
7.4.160.0060.01216.57
7.4.150.0030.01617.40
7.4.140.0060.01517.86
7.4.130.0120.00816.68
7.4.120.0130.00416.68
7.4.110.0100.00716.73
7.4.100.0090.00916.46
7.4.90.0160.00716.69
7.4.80.0000.01719.39
7.4.70.0070.01616.68
7.4.60.0100.01016.66
7.4.50.0030.00616.78
7.4.40.0030.00922.77
7.4.30.0030.01916.55
7.4.00.0120.00315.00
7.3.330.0030.00313.18
7.3.320.0030.00313.43
7.3.310.0040.00416.50
7.3.300.0070.00016.42
7.3.290.0120.00316.40
7.3.280.0110.00916.44
7.3.270.0150.00317.40
7.3.260.0160.00718.24
7.3.250.0120.00716.66
7.3.240.0120.00916.61
7.3.230.0090.00816.74
7.3.210.0080.01216.36
7.3.200.0090.01319.39
7.3.190.0110.01116.69
7.3.180.0070.01316.80
7.3.170.0070.01116.77
7.3.160.0030.01416.66
7.3.120.0060.00714.84
7.3.110.0040.01514.92
7.3.100.0070.01014.90
7.3.90.0030.00914.90
7.3.80.0030.01015.02
7.3.70.0060.00314.55
7.3.60.0050.00515.04
7.3.50.0080.00815.03
7.3.40.0060.00614.93
7.3.30.0070.00414.51
7.3.20.0000.01516.80
7.3.10.0040.00916.74
7.3.00.0060.00716.64
7.2.330.0130.00616.80
7.2.320.0160.00716.55
7.2.310.0100.01016.83
7.2.300.0110.00516.75
7.2.290.0130.01016.67
7.2.250.0110.00815.09
7.2.240.0070.01415.02
7.2.230.0110.00414.93
7.2.220.0060.00915.17
7.2.210.0070.01114.82
7.2.200.0060.00615.28
7.2.190.0030.01315.08
7.2.180.0030.01015.04
7.2.170.0030.00714.97
7.2.130.0060.00617.23
7.2.120.0080.00417.01
7.2.110.0080.00416.89
7.2.100.0060.00617.04
7.2.90.0090.00317.11
7.2.80.0040.01116.72
7.2.70.0100.00316.98
7.2.60.0090.00317.05
7.2.50.0000.00917.04
7.2.40.0030.00616.95
7.2.30.0040.00817.15
7.2.20.0040.00817.00
7.2.10.0030.00916.80
7.2.00.0070.00618.13
7.1.330.0070.01015.91
7.1.320.0040.00415.81
7.1.310.0060.00315.77
7.1.300.0090.00915.82
7.1.290.0000.01415.80
7.1.280.0030.00615.90
7.1.270.0040.01115.80
7.1.260.0030.01215.81
7.1.250.0080.00015.76
7.1.100.0030.00718.50
7.1.70.0030.00517.17
7.1.60.0070.01819.17
7.1.50.0100.01416.94
7.1.00.0000.04722.34
7.0.200.0000.00916.76
7.0.140.0030.07322.12
7.0.100.0300.04719.93
7.0.90.0400.05319.90
7.0.80.0130.07019.98
7.0.70.0330.09719.96
7.0.60.0470.07319.89
7.0.50.0230.07320.25
7.0.40.0230.06320.09
7.0.30.0070.08320.10
7.0.20.0130.04720.00
7.0.10.0070.08320.18
7.0.00.0130.08020.14
5.6.280.0000.07720.86
5.6.250.0100.07320.63
5.6.240.0070.06020.66
5.6.230.0130.06020.72
5.6.220.0030.08320.60
5.6.210.0230.07020.76
5.6.200.0100.07721.07
5.6.190.0070.08320.95
5.6.180.0100.08321.09
5.6.170.0170.07721.04
5.6.160.0100.07321.09
5.6.150.0100.08021.14
5.6.140.0100.08320.96
5.6.130.0070.08321.02
5.6.120.0100.08021.11
5.6.110.0100.08321.02
5.6.100.0170.07021.13
5.6.90.0100.06321.02
5.6.80.0130.07320.35
5.6.70.0070.08020.52
5.6.60.0070.05320.48
5.6.50.0070.08020.50
5.6.40.0030.05020.54
5.6.30.0100.06720.39
5.6.20.0130.07020.38
5.6.10.0130.07020.46
5.6.00.0000.08720.36
5.5.380.0030.04020.45
5.5.370.0200.05720.37
5.5.360.0130.04720.51
5.5.350.0030.05320.31
5.5.340.0070.08020.88
5.5.330.0130.07320.78
5.5.320.0030.07320.92
5.5.310.0200.07720.82
5.5.300.0130.07720.64
5.5.290.0070.07720.74
5.5.280.0070.07720.73
5.5.270.0170.06720.80
5.5.260.0170.07320.88
5.5.250.0100.07720.42
5.5.240.0070.07720.19
5.5.230.0100.08020.30
5.5.220.0030.07320.29
5.5.210.0070.06720.16
5.5.200.0070.08020.16
5.5.190.0030.07020.24
5.5.180.0030.07720.16
5.5.160.0100.07020.07
5.5.150.0070.07720.28
5.5.140.0170.06320.15
5.5.130.0230.06720.18
5.5.120.0070.07320.22
5.5.110.0130.08320.09
5.5.100.0100.05320.11
5.5.90.0070.08019.95
5.5.80.0100.03720.11
5.5.70.0170.06320.07
5.5.60.0130.07020.04
5.5.50.0070.07320.16
5.5.40.0030.08020.16
5.5.30.0070.06719.96
5.5.20.0200.06320.14
5.5.10.0200.05320.11
5.5.00.0070.07320.10
5.4.450.0070.08019.38
5.4.440.0100.07719.36
5.4.430.0030.04719.27
5.4.420.0130.06019.37
5.4.410.0070.07319.41
5.4.400.0100.07319.05
5.4.390.0000.07718.88
5.4.380.0100.07319.13
5.4.370.0070.08019.24
5.4.360.0130.04719.05
5.4.350.0100.08019.21
5.4.340.0070.08019.04
5.4.320.0170.06719.15
5.4.310.0170.06318.91
5.4.300.0170.06718.85
5.4.290.0170.05718.85
5.4.280.0030.07319.04
5.4.270.0170.07019.04
5.4.260.0070.07019.13
5.4.250.0100.07718.85
5.4.240.0070.07318.94
5.4.230.0000.09319.21
5.4.220.0100.07318.90
5.4.210.0170.06719.13
5.4.200.0070.07018.87
5.4.190.0100.06318.89
5.4.180.0070.06718.89
5.4.170.0070.07319.02
5.4.160.0070.06319.12
5.4.150.0070.06318.86
5.4.140.0030.08016.29
5.4.130.0070.06716.34
5.4.120.0070.07016.36
5.4.110.0070.07316.44
5.4.100.0100.06716.43
5.4.90.0100.07716.52
5.4.80.0000.07316.50
5.4.70.0100.06316.41
5.4.60.0070.07016.38
5.4.50.0130.07016.41
5.4.40.0070.06716.54
5.4.30.0130.06716.31
5.4.20.0100.06716.43
5.4.10.0070.07016.49
5.4.00.0030.07715.62
5.3.290.0030.06714.71
5.3.280.0030.07714.67
5.3.270.0100.06014.66
5.3.260.0000.08314.68
5.3.250.0130.06314.56
5.3.240.0170.06714.70
5.3.230.0030.08014.73
5.3.220.0070.06014.57
5.3.210.0100.07014.62
5.3.200.0070.07314.58
5.3.190.0100.07314.55
5.3.180.0130.07314.59
5.3.170.0000.05714.55
5.3.160.0000.08014.57
5.3.150.0100.07314.59
5.3.140.0100.07314.57
5.3.130.0070.07314.56
5.3.120.0100.07014.66
5.3.110.0030.07314.53
5.3.100.0030.08014.11
5.3.90.0070.07314.11
5.3.80.0030.07313.95
5.3.70.0030.07313.95
5.3.60.0030.07314.06
5.3.50.0070.06014.07
5.3.40.0070.08013.84
5.3.30.0100.07013.89
5.3.20.0030.07713.77
5.3.10.0100.06713.67
5.3.00.0030.07013.70
5.2.170.0070.06013.60
5.2.160.0030.06713.60
5.2.150.0000.06713.60
5.2.140.0100.06013.60
5.2.130.0130.05713.60
5.2.120.0170.04313.60
5.2.110.0130.05313.60
5.2.100.0070.06313.60
5.2.90.0000.05013.60
5.2.80.0070.05713.60
5.2.70.0070.04313.60
5.2.60.0000.06013.60
5.2.50.0100.05013.60
5.2.40.0030.06013.60
5.2.30.0130.05313.60
5.2.20.0030.06313.60
5.2.10.0100.05713.60
5.2.00.0070.05713.60
5.1.60.0030.05313.60
5.1.50.0030.05013.60
5.1.40.0070.05013.60
5.1.30.0030.05713.60
5.1.20.0100.05313.60
5.1.10.0070.05013.60
5.1.00.0100.05013.60
5.0.50.0030.04013.60
5.0.40.0000.04713.60
5.0.30.0030.07013.60
5.0.20.0030.03013.60
5.0.10.0030.04013.60
5.0.00.0070.04313.60
4.4.90.0070.03013.60
4.4.80.0000.03313.60
4.4.70.0000.03713.60
4.4.60.0030.03013.60
4.4.50.0000.03313.60
4.4.40.0030.05313.60
4.4.30.0070.03013.60
4.4.20.0000.03713.60
4.4.10.0130.03313.60
4.4.00.0000.05013.60
4.3.110.0030.03713.60
4.3.100.0000.02013.60
4.3.90.0030.03013.60
4.3.80.0030.05313.60
4.3.70.0030.03313.60
4.3.60.0030.03313.60
4.3.50.0030.03713.60
4.3.40.0000.05313.60
4.3.30.0000.03713.60
4.3.20.0000.03713.60
4.3.10.0000.03313.60
4.3.00.0000.02713.60

preferences:
42.54 ms | 400 KiB | 5 Q