3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = "Test test1"; $match = preg_replace('/(?<=^|[\x09\x20\x2D])./e', 'strtoupper("\0")', $test); var_dump($match); $match = preg_replace_callback('/(?<=^|[\x09\x20\x2D])./', function($matches) {return strtoupper($matches[0]);}, $test); var_dump($match);

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)
8.3.60.0140.00318.80
8.3.50.0120.00721.09
8.3.40.0070.00718.92
8.3.30.0070.00720.14
8.3.20.0040.00420.29
8.3.10.0050.00321.96
8.3.00.0080.00022.44
8.2.180.0170.00016.75
8.2.170.0110.00422.96
8.2.160.0070.00722.08
8.2.150.0080.00024.18
8.2.140.0180.00324.66
8.2.130.0000.00826.16
8.2.120.0080.00019.79
8.2.110.0090.00022.20
8.2.100.0080.00319.34
8.2.90.0030.00519.19
8.2.80.0000.00919.46
8.2.70.0070.00317.75
8.2.60.0030.00618.03
8.2.50.0030.00518.07
8.2.40.0080.00018.28
8.2.30.0040.00418.17
8.2.20.0000.00717.91
8.2.10.0050.00217.82
8.2.00.0050.00217.79
8.1.280.0060.00925.92
8.1.270.0030.00524.66
8.1.260.0080.00026.35
8.1.250.0030.00528.09
8.1.240.0090.00023.83
8.1.230.0080.00319.21
8.1.220.0090.00017.74
8.1.210.0000.00818.77
8.1.200.0060.00617.38
8.1.190.0000.00817.52
8.1.180.0090.00019.26
8.1.170.0040.00418.57
8.1.160.0000.00722.17
8.1.150.0070.00018.77
8.1.140.0040.00417.53
8.1.130.0030.00317.91
8.1.120.0000.00717.53
8.1.110.0040.00417.50
8.1.100.0070.00017.63
8.1.90.0030.00517.58
8.1.80.0000.00717.50
8.1.70.0040.00417.59
8.1.60.0040.00417.73
8.1.50.0040.00417.67
8.1.40.0080.00017.71
8.1.30.0050.00317.75
8.1.20.0030.00617.66
8.1.10.0000.00717.69
8.1.00.0080.00017.52
8.0.300.0070.00018.77
8.0.290.0000.00717.04
8.0.280.0070.00018.30
8.0.270.0070.00017.23
8.0.260.0070.00017.03
8.0.250.0030.00317.00
8.0.240.0040.00417.14
8.0.230.0040.00417.09
8.0.220.0030.00316.97
8.0.210.0030.00317.05
8.0.200.0070.00017.10
8.0.190.0030.00717.21
8.0.180.0090.00017.13
8.0.170.0060.00317.01
8.0.160.0000.00717.04
8.0.150.0000.00817.07
8.0.140.0040.00416.99
8.0.130.0050.00013.57
8.0.120.0070.00017.07
8.0.110.0070.00017.11
8.0.100.0050.00317.13
8.0.90.0000.00717.16
8.0.80.0090.00617.05
8.0.70.0030.00517.14
8.0.60.0000.00817.13
8.0.50.0070.00016.98
8.0.30.0070.01117.34
8.0.20.0120.00717.40
8.0.10.0080.00017.19
8.0.00.0080.01016.81
7.4.330.0000.00715.00
7.4.320.0000.00616.81
7.4.300.0050.00216.61
7.4.290.0000.00716.62
7.4.280.0000.00816.61
7.4.270.0030.00316.71
7.4.260.0000.01116.70
7.4.250.0000.00816.64
7.4.240.0020.00516.70
7.4.230.0050.00216.61
7.4.220.0060.01216.88
7.4.210.0070.00716.79
7.4.200.0050.00216.88
7.4.190.0060.00316.58
7.4.160.0100.01016.89
7.4.150.0170.00617.40
7.4.140.0120.00817.86
7.4.130.0120.00516.72
7.4.120.0100.00916.76
7.4.110.0180.00016.68
7.4.100.0130.00616.61
7.4.90.0170.00716.84
7.4.80.0090.00919.39
7.4.70.0100.00616.64
7.4.60.0100.00616.69
7.4.50.0030.00616.55
7.4.40.0070.00722.77
7.4.30.0030.01316.57
7.4.00.0040.01115.04
7.3.330.0030.00313.50
7.3.320.0060.00013.58
7.3.310.0000.00716.37
7.3.300.0080.00016.37
7.3.290.0070.01416.53
7.3.280.0070.00816.45
7.3.270.0070.01017.40
7.3.260.0120.00616.45
7.3.250.0140.00816.59
7.3.240.0090.00916.73
7.3.230.0060.01016.50
7.3.210.0190.00616.61
7.3.200.0140.00719.39
7.3.190.0070.01016.45
7.3.180.0090.00616.69
7.3.170.0130.00316.56
7.3.160.0130.00316.59
7.3.120.0000.01214.96
7.2.330.0110.01116.88
7.2.320.0120.00916.56
7.2.310.0070.01016.77
7.2.300.0000.01716.77
7.2.290.0040.01316.73
7.2.60.0030.01316.91
7.2.00.0000.01019.55
7.1.200.0070.00316.04
7.1.100.0000.01318.37
7.1.70.0000.00717.05
7.1.60.0100.01019.29
7.1.50.0100.01017.17
7.1.00.0030.06722.33
7.0.200.0080.00415.02
7.0.140.0030.07722.12
7.0.110.0130.05320.06
7.0.100.0070.08019.97
7.0.90.0100.07020.08
7.0.80.0070.04020.04
7.0.70.0070.03719.94
7.0.60.0030.03719.68
7.0.50.0300.05019.96
7.0.40.0030.03719.82
7.0.30.0100.03719.74
7.0.20.0070.05719.78
7.0.10.0070.04719.59
7.0.00.0030.06319.71
5.6.280.0070.06721.12
5.6.260.0100.03720.74
5.6.250.0070.08320.75
5.6.240.0000.04720.57
5.6.230.0070.05020.57
5.6.220.0030.05020.67
5.6.210.0070.06020.61
5.6.200.0000.05320.56
5.6.190.0070.04320.59
5.6.180.0070.07020.47
5.6.170.0100.03720.57
5.6.160.0170.03320.69
5.6.150.0000.06320.46
5.6.140.0100.05720.55
5.6.130.0070.03320.66
5.6.120.0100.05720.53
5.6.110.0000.05020.55
5.6.100.0000.06020.63
5.6.90.0030.08320.57
5.6.80.0030.05019.94
5.6.70.0030.04320.23
5.6.60.0030.04020.02
5.6.50.0100.07720.00
5.6.40.0000.05320.06
5.6.30.0100.03719.93
5.6.20.0100.06719.91
5.6.10.0130.07020.21
5.6.00.0200.05319.93
5.5.380.0000.04017.46
5.5.370.0030.05317.71
5.5.360.0070.03717.55
5.5.350.0030.07017.59
5.5.340.0000.04318.10
5.5.330.0130.06018.23
5.5.320.0000.04318.22
5.5.310.0070.03718.10
5.5.300.0100.03318.13
5.5.290.0000.04717.93
5.5.280.0000.04318.09
5.5.270.0030.06018.21
5.5.260.0030.04718.07
5.5.250.0070.05017.72
5.5.240.0070.03017.48
5.5.230.0030.03717.48
5.5.220.0130.07317.42
5.5.210.0100.03017.31
5.5.200.0030.04017.41
5.5.190.0100.05717.30
5.5.180.0000.03717.31
5.5.160.0070.04317.61
5.5.150.0100.06017.40
5.5.140.0070.08317.30
5.5.130.0070.03717.40
5.5.120.0000.05717.28
5.5.110.0070.03017.27
5.5.100.0030.03717.50
5.5.90.0030.04317.18
5.5.80.0030.03717.50
5.5.70.0000.06017.04
5.5.60.0130.02717.15
5.5.50.0000.07017.20
5.5.40.0100.03717.37
5.5.30.0030.07717.33
5.5.20.0030.04017.46
5.5.10.0030.03717.30
5.5.00.0030.08317.19
5.4.450.0100.03319.32
5.4.440.0030.04019.51
5.4.430.0000.04719.55
5.4.420.0070.06019.27
5.4.410.0070.03019.38
5.4.400.0070.03719.32
5.4.390.0000.05719.01
5.4.380.0030.05319.01
5.4.370.0170.06019.00
5.4.360.0070.06019.17
5.4.350.0130.04719.16
5.4.340.0070.03719.01
5.4.320.0030.04019.09
5.4.310.0070.03719.14
5.4.300.0030.06719.24
5.4.290.0030.04719.09
5.4.280.0070.03719.23
5.4.270.0070.07319.24
5.4.260.0100.06719.01
5.4.250.0070.07019.24
5.4.240.0130.06018.94
5.4.230.0100.06319.16
5.4.220.0100.07318.96
5.4.210.0070.07019.32
5.4.200.0030.05019.00
5.4.190.0030.06018.97
5.4.180.0030.04319.07
5.4.170.0070.06319.08
5.4.160.0070.05019.31
5.4.150.0030.03318.98
5.4.140.0070.04716.65
5.4.130.0030.06016.59
5.4.120.0030.03016.61
5.4.110.0030.07316.71
5.4.100.0000.08016.64
5.4.90.0070.06016.59
5.4.80.0030.06716.61
5.4.70.0030.03716.45
5.4.60.0100.03316.34
5.4.50.0000.07016.52
5.4.40.0000.04316.62
5.4.30.0070.03716.51
5.4.20.0030.05016.39
5.4.10.0070.03716.56
5.4.00.0070.06715.78
5.3.290.0030.05314.68
5.3.280.0070.03314.69
5.3.270.0070.04314.60
5.3.260.0030.04014.75
5.3.250.0030.04314.74
5.3.240.0030.03314.61
5.3.230.0130.05714.62
5.3.220.0070.06314.65
5.3.210.0000.04714.59
5.3.200.0070.08014.69
5.3.190.0000.07714.58
5.3.180.0070.06014.59
5.3.170.0130.04314.55
5.3.160.0030.06714.79
5.3.150.0130.03714.79
5.3.140.0030.05314.53
5.3.130.0030.05714.77
5.3.120.0100.04714.40
5.3.110.0100.03314.63
5.3.100.0100.07014.07
5.3.90.0000.04014.13
5.3.80.0100.03014.11
5.3.70.0070.04314.09
5.3.60.0130.03314.08
5.3.50.0000.04013.96
5.3.40.0000.04313.93
5.3.30.0030.03713.91
5.3.20.0130.03013.73
5.3.10.0070.03713.51
5.3.00.0070.03713.61
5.2.170.0030.03012.19
5.2.160.0070.03012.19
5.2.150.0000.03312.19
5.2.140.0030.03712.19
5.2.130.0030.03312.19
5.2.120.0000.03712.19
5.2.110.0070.04712.19
5.2.100.0000.05312.19
5.2.90.0030.03012.19
5.2.80.0070.05012.19
5.2.70.0100.04312.19
5.2.60.0070.04012.19
5.2.50.0030.03712.19
5.2.40.0030.05012.19
5.2.30.0070.04312.19
5.2.20.0000.03012.19
5.2.10.0170.01712.19
5.2.00.0000.03012.19
5.1.60.0000.02712.19
5.1.50.0000.02712.19
5.1.40.0030.02712.19
5.1.30.0000.02312.19
5.1.20.0000.02312.19
5.1.10.0030.02312.19
5.1.00.0000.02312.19
5.0.50.0000.02712.19
5.0.40.0000.02012.19
5.0.30.0070.02012.19
5.0.20.0000.02012.19
5.0.10.0030.02312.19
5.0.00.0000.02712.19
4.4.90.0070.03012.19
4.4.80.0030.01712.19
4.4.70.0030.01312.19
4.4.60.0030.01312.19
4.4.50.0000.01712.19
4.4.40.0000.03312.19
4.4.30.0030.01712.19
4.4.20.0030.01312.19
4.4.10.0000.01712.19
4.4.00.0000.02312.19
4.3.110.0000.01312.19
4.3.100.0000.01312.19
4.3.90.0030.01012.19
4.3.80.0030.02012.19
4.3.70.0030.01712.19
4.3.60.0000.01312.19
4.3.50.0030.01012.19
4.3.40.0000.02312.19
4.3.30.0000.01312.19
4.3.20.0030.01012.19
4.3.10.0000.01312.19
4.3.00.0000.01312.19

preferences:
46 ms | 401 KiB | 5 Q