3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "abc\n"; echo (preg_match('/^[a-z]\z/u', $string)) ? 'true' : 'false'; echo "\n"; echo (preg_match('/^[a-z]/u', $string)) ? 'true' : 'false';

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)
8.3.60.0140.00416.63
8.3.50.0180.00222.08
8.3.40.0110.00418.96
8.3.30.0110.00318.97
8.3.20.0040.00418.90
8.3.10.0080.00021.04
8.3.00.0050.00321.82
8.2.180.0130.00618.66
8.2.170.0100.01022.96
8.2.160.0080.00520.42
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0050.00321.27
8.2.110.0060.00322.44
8.2.100.0080.00418.03
8.2.90.0040.00419.17
8.2.80.0040.00417.97
8.2.70.0070.00317.63
8.2.60.0030.00617.93
8.2.50.0000.00818.07
8.2.40.0000.00818.16
8.2.30.0060.00319.93
8.2.20.0040.00417.87
8.2.10.0030.00617.89
8.2.00.0090.00017.82
8.1.280.0110.00425.92
8.1.270.0050.00323.99
8.1.260.0090.00626.35
8.1.250.0040.00428.09
8.1.240.0100.00022.47
8.1.230.0070.00320.88
8.1.220.0000.00818.77
8.1.210.0030.00618.88
8.1.200.0030.00717.38
8.1.190.0000.00917.41
8.1.180.0050.00318.10
8.1.170.0000.00818.64
8.1.160.0000.00718.89
8.1.150.0080.00018.68
8.1.140.0030.00517.45
8.1.130.0040.00417.46
8.1.120.0000.00717.45
8.1.110.0040.00417.51
8.1.100.0000.00717.54
8.1.90.0070.00017.60
8.1.80.0000.00717.43
8.1.70.0030.00317.50
8.1.60.0000.00817.69
8.1.50.0040.00417.59
8.1.40.0080.00017.64
8.1.30.0060.00317.69
8.1.20.0050.00317.77
8.1.10.0000.00817.66
8.1.00.0020.00517.50
8.0.300.0040.00419.85
8.0.290.0000.00716.88
8.0.280.0070.00018.36
8.0.270.0030.00317.28
8.0.260.0040.00417.13
8.0.250.0050.00217.18
8.0.240.0030.00517.03
8.0.230.0070.00017.08
8.0.220.0000.00717.04
8.0.210.0030.00317.07
8.0.200.0000.00617.01
8.0.190.0000.00716.95
8.0.180.0040.00417.07
8.0.170.0000.00817.06
8.0.160.0030.00317.14
8.0.150.0040.00416.92
8.0.140.0040.00416.86
8.0.130.0060.00013.44
8.0.120.0080.00317.02
8.0.110.0040.00416.99
8.0.100.0000.00716.94
8.0.90.0050.00216.91
8.0.80.0070.01417.01
8.0.70.0000.00717.06
8.0.60.0040.00416.99
8.0.50.0080.00016.90
8.0.30.0070.01217.27
8.0.20.0120.01017.41
8.0.10.0070.00017.07
8.0.00.0130.00617.06
7.4.330.0020.00214.80
7.4.320.0060.00016.73
7.4.300.0060.00016.63
7.4.290.0070.00016.71
7.4.280.0070.00016.73
7.4.270.0040.00416.75
7.4.260.0000.00513.46
7.4.250.0070.00016.68
7.4.240.0000.00716.63
7.4.230.0040.00416.69
7.4.220.0100.00716.51
7.4.210.0060.00816.73
7.4.200.0000.00816.84
7.4.190.0000.00716.90
7.4.160.0080.00816.59
7.4.150.0070.01017.40
7.4.140.0120.00817.86
7.4.130.0070.01016.74
7.4.120.0100.00816.62
7.4.110.0160.00616.73
7.4.100.0130.00916.57
7.4.90.0110.00716.66
7.4.80.0030.01319.37
7.4.70.0080.01116.82
7.4.60.0130.00916.46
7.4.50.0030.00616.52
7.4.40.0070.01022.27
7.4.30.0170.00716.65
7.4.00.0080.00914.99
7.3.330.0050.00013.18
7.3.320.0040.00313.13
7.3.310.0040.00416.22
7.3.300.0070.00016.37
7.3.290.0140.00016.32
7.3.280.0090.00916.36
7.3.270.0150.00917.40
7.3.260.0100.01018.24
7.3.250.0060.01116.32
7.3.240.0100.01016.50
7.3.230.0110.00616.39
7.3.210.0070.01116.30
7.3.200.0030.01519.39
7.3.190.0140.00616.44
7.3.180.0130.01016.48
7.3.170.0030.01316.61
7.3.160.0090.00916.30
7.3.120.0050.01214.74
7.3.110.0090.00914.66
7.3.100.0030.01214.96
7.3.90.0080.00414.64
7.3.80.0030.01014.88
7.3.70.0090.00615.02
7.3.60.0070.01114.94
7.3.50.0060.00914.68
7.3.40.0040.00714.71
7.3.30.0000.01314.68
7.3.20.0030.01016.68
7.3.10.0000.01116.87
7.3.00.0130.00316.79
7.2.330.0100.00716.65
7.2.320.0030.01916.67
7.2.310.0070.01416.62
7.2.300.0120.00916.53
7.2.290.0070.01516.69
7.2.250.0040.01215.20
7.2.240.0060.00915.05
7.2.230.0090.00314.82
7.2.220.0130.00315.25
7.2.210.0030.01014.92
7.2.200.0040.01215.28
7.2.190.0030.01015.23
7.2.180.0000.01214.96
7.2.170.0060.00615.05
7.2.00.0030.00619.66
7.1.330.0070.00715.93
7.1.320.0060.01015.89
7.1.310.0120.00315.91
7.1.300.0060.00615.98
7.1.290.0030.01215.88
7.1.280.0000.01415.81
7.1.270.0050.00315.78
7.1.260.0070.00715.86
7.1.100.0030.00718.27
7.1.70.0040.00417.41
7.1.60.0100.01419.40
7.1.50.0070.01417.02
7.1.00.0070.07322.45
7.0.200.0040.00416.96
7.0.140.0030.07321.99
7.0.60.0070.06019.90
7.0.50.0100.04717.80
7.0.40.0130.08020.25
7.0.30.0500.05720.11
7.0.20.0370.07720.03
7.0.10.0370.04720.18
7.0.00.0100.06020.13
5.6.280.0070.07020.95
5.6.210.0230.06020.70
5.6.200.0130.08018.21
5.6.190.0100.08020.56
5.6.180.0370.03320.27
5.6.170.0400.06720.49
5.6.160.0070.05720.41
5.6.150.0000.06318.16
5.6.140.0100.08018.13
5.6.130.0030.08018.11
5.6.120.0200.07021.01
5.6.110.0130.07021.02
5.6.100.0030.07320.97
5.6.90.0100.07720.96
5.6.80.0030.07720.50
5.6.70.4370.04020.40
5.5.350.0270.07720.38
5.5.340.0100.07718.02
5.5.330.0170.05720.13
5.5.320.0330.07020.37
5.5.310.0230.08020.25
5.5.300.0100.04018.02
5.5.290.0130.04318.00
5.5.280.0200.07320.68
5.5.270.0030.09020.79
5.5.260.0000.04320.88
5.5.250.0130.06720.74
5.5.240.0000.08020.36
5.4.450.0270.07019.26
5.4.440.0230.07319.46
5.4.430.0200.05019.21
5.4.420.0200.07719.20
5.4.410.0270.06019.44
5.4.400.0300.06719.14
5.4.390.0300.07019.13
5.4.380.0100.04719.10
5.4.370.0200.05019.21
5.4.360.0200.03718.92
5.4.350.0330.04319.08
5.4.340.0270.07018.92
5.4.320.0200.06719.06
5.4.310.0230.07018.78
5.4.300.0270.06719.28
5.4.290.0200.05019.16
5.4.280.0230.03318.93
5.4.270.0270.06719.07
5.4.260.0400.03018.95
5.4.250.0230.03719.08
5.4.240.0230.04319.07
5.4.230.0270.05718.93
5.4.220.0130.04319.07
5.4.210.0200.04718.78
5.4.200.0300.04719.16
5.4.190.0270.07019.23
5.4.180.0200.05718.91
5.4.170.0270.07718.77
5.4.160.0230.04019.09
5.4.150.0230.05719.03
5.4.140.0270.06316.26
5.4.130.0230.07016.31
5.4.120.0230.06716.56
5.4.110.0300.06716.47
5.4.100.0230.04016.42
5.4.90.0300.07016.43
5.4.80.0200.06016.37
5.4.70.0130.05016.38
5.4.60.0300.06016.31
5.4.50.0300.05016.39
5.4.40.0270.05716.38
5.4.30.0430.04316.27
5.4.20.0170.07016.32
5.4.10.0270.04316.17
5.4.00.0200.03715.76
5.3.290.0230.06314.59
5.3.280.0100.05314.53
5.3.270.0230.07014.58
5.3.260.0230.07714.46
5.3.250.0200.07714.55
5.3.240.0200.04714.44
5.3.230.0270.06714.45
5.3.220.0200.05714.47
5.3.210.0270.05014.65
5.3.200.0330.06014.51
5.3.190.0270.04014.55
5.3.180.0170.06014.59
5.3.170.0270.05314.39
5.3.160.0230.05014.60
5.3.150.0200.05714.60
5.3.140.0200.07314.58
5.3.130.0130.05314.48
5.3.120.0200.04014.48
5.3.110.0130.05714.45
5.3.100.0100.04313.87
5.3.90.0200.05313.97
5.3.80.0270.05314.11
5.3.70.0200.07313.87
5.3.60.0270.04013.86
5.3.50.0130.08013.92
5.3.40.0200.06013.79
5.3.30.0270.07013.95
5.3.20.0330.05013.67
5.3.10.0200.05313.63
5.3.00.0300.06313.57
5.2.170.0230.05713.45
5.2.160.0100.04313.45
5.2.150.0200.06013.45
5.2.140.0200.03713.45
5.2.130.0230.04313.45
5.2.120.0200.05313.45
5.2.110.0200.02713.45
5.2.100.0130.05313.45
5.2.90.0170.03713.45
5.2.80.0170.04013.45
5.2.70.0200.04713.45
5.2.60.0230.05013.45
5.2.50.0230.05313.45
5.2.40.0130.05713.45
5.2.30.0130.04713.45
5.2.20.0170.06013.45
5.2.10.0130.06013.45
5.2.00.0200.04713.45
5.1.60.0200.05013.45
5.1.50.0230.03313.45
5.1.40.0300.04013.45
5.1.30.0170.05713.45
5.1.20.0230.04313.45
5.1.10.0300.04013.45
5.1.00.0170.04713.45
5.0.50.0130.02313.45
5.0.40.0070.04713.45
5.0.30.0070.05013.45
5.0.20.0070.02713.45
5.0.10.0070.04313.45
5.0.00.0030.05013.45
4.4.90.0070.03313.45
4.4.80.0130.01713.45
4.4.70.0070.03713.45
4.4.60.0070.02313.45
4.4.50.0100.02313.45
4.4.40.0070.05313.45
4.4.30.0100.01713.45
4.4.20.0100.03713.45
4.4.10.0130.03013.45
4.4.00.0070.04313.45
4.3.110.0070.03313.45
4.3.100.0100.01313.45
4.3.90.0070.01713.45
4.3.80.0030.04013.45
4.3.70.0130.01013.45
4.3.60.0130.03713.45
4.3.50.0130.02013.45
4.3.40.0070.03713.45
4.3.30.0070.03313.45
4.3.20.0070.03013.45
4.3.10.0030.03713.45
4.3.00.0070.02713.45

preferences:
38.55 ms | 401 KiB | 5 Q