3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo (!preg_match("/^[a-z]+$/i", '4567')) ? 'false' : 'true'; echo "\n"; echo (!preg_match("/^[a-z]+$/i", '4567A')) ? 'false' : 'true';

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)
8.3.60.0060.01016.25
8.3.50.0250.00717.55
8.3.40.0130.00318.63
8.3.30.0150.00018.84
8.3.20.0060.00918.79
8.3.10.0040.00418.86
8.3.00.0080.00019.38
8.2.180.0090.00616.63
8.2.170.0160.00022.96
8.2.160.0080.00618.91
8.2.150.0080.00024.18
8.2.140.0090.00624.66
8.2.130.0120.00926.16
8.2.120.0070.00021.06
8.2.110.0060.00320.81
8.2.100.0070.00417.72
8.2.90.0050.00317.88
8.2.80.0000.00918.91
8.2.70.0060.00317.63
8.2.60.0050.00317.75
8.2.50.0080.00017.93
8.2.40.0050.00319.48
8.2.30.0070.00317.65
8.2.20.0070.00317.70
8.2.10.0040.00417.62
8.2.00.0030.00617.82
8.1.280.0090.00625.92
8.1.270.0040.00423.99
8.1.260.0140.00426.35
8.1.250.0110.00728.09
8.1.240.0090.00019.13
8.1.230.0040.00720.97
8.1.220.0060.00318.64
8.1.210.0080.00018.77
8.1.200.0050.00317.25
8.1.190.0090.00017.23
8.1.180.0000.00818.10
8.1.170.0000.00817.62
8.1.160.0020.00518.97
8.1.150.0000.00718.64
8.1.140.0030.00517.46
8.1.130.0040.00419.31
8.1.120.0000.00717.59
8.1.110.0030.00317.56
8.1.100.0000.00817.51
8.1.90.0050.00217.39
8.1.80.0050.00317.52
8.1.70.0000.00717.49
8.1.60.0030.00617.67
8.1.50.0040.00417.50
8.1.40.0050.00517.57
8.1.30.0060.00317.74
8.1.20.0000.00817.75
8.1.10.0040.00417.54
8.1.00.0040.00417.52
8.0.300.0000.00718.77
8.0.290.0040.00417.18
8.0.280.0000.00818.49
8.0.270.0000.00717.19
8.0.260.0020.00516.90
8.0.250.0040.00416.90
8.0.240.0000.00717.02
8.0.230.0040.00416.98
8.0.220.0070.00016.95
8.0.210.0030.00316.85
8.0.200.0070.00016.93
8.0.190.0040.00416.91
8.0.180.0040.00416.95
8.0.170.0050.00316.82
8.0.160.0070.00016.88
8.0.150.0030.00616.95
8.0.140.0030.00516.95
8.0.130.0030.00313.41
8.0.120.0050.00316.75
8.0.110.0040.00416.81
8.0.100.0050.00317.02
8.0.90.0070.00016.84
8.0.80.0030.01216.97
8.0.70.0040.00416.91
8.0.60.0080.00017.02
8.0.50.0030.00616.96
8.0.30.0110.00816.85
8.0.20.0030.01617.26
8.0.10.0050.00317.04
8.0.00.0130.00716.84
7.4.330.0050.00013.20
7.4.320.0000.00616.65
7.4.300.0060.00016.63
7.4.290.0000.00816.62
7.4.280.0070.00016.63
7.4.270.0050.00316.74
7.4.260.0050.00013.36
7.4.250.0040.00416.64
7.4.240.0030.00316.68
7.4.230.0050.00316.52
7.4.220.0060.01316.57
7.4.210.0060.01116.76
7.4.200.0070.00016.77
7.4.190.0050.00216.55
7.4.160.0160.00016.61
7.4.150.0030.01416.50
7.4.140.0120.01216.59
7.4.130.0120.00316.62
7.4.120.0060.01316.86
7.4.110.0140.00616.63
7.4.100.0130.01416.52
7.4.90.0090.00916.70
7.4.80.0160.00619.39
7.4.70.0060.01016.45
7.4.60.0060.01016.61
7.4.50.0030.00316.69
7.4.40.0030.01316.59
7.4.30.0070.01116.58
7.4.10.0090.00614.93
7.4.00.0050.01015.10
7.3.330.0030.00313.19
7.3.320.0030.00313.14
7.3.310.0030.00316.23
7.3.300.0000.00816.32
7.3.290.0100.00416.30
7.3.280.0140.00316.20
7.3.270.0130.00316.65
7.3.260.0120.01316.51
7.3.250.0070.01216.63
7.3.240.0060.01216.51
7.3.230.0090.00916.41
7.3.210.0160.00316.68
7.3.200.0060.01516.54
7.3.190.0110.01116.52
7.3.180.0140.00016.60
7.3.170.0130.00316.38
7.3.160.0140.00416.48
7.3.130.0100.01014.86
7.3.120.0050.01114.89
7.3.110.0040.01615.20
7.3.100.0060.00914.83
7.3.90.0150.00015.13
7.3.80.0030.01214.60
7.3.70.0070.01014.65
7.3.60.0070.00714.78
7.3.50.0030.00714.87
7.3.40.0120.00014.70
7.3.30.0090.00914.90
7.3.20.0070.00716.94
7.3.10.0050.01016.51
7.3.00.0080.00816.70
7.2.330.0100.00716.57
7.2.320.0100.00716.64
7.2.310.0090.00916.80
7.2.300.0130.01016.66
7.2.290.0100.00916.77
7.2.260.0040.01015.21
7.2.250.0030.01315.10
7.2.240.0040.01215.01
7.2.230.0060.00915.11
7.2.220.0040.01214.98
7.2.210.0050.00715.16
7.2.200.0090.00615.11
7.2.190.0020.00715.17
7.2.180.0000.01615.21
7.2.170.0040.01215.05
7.2.160.0060.00914.98
7.2.150.0080.00316.83
7.2.140.0120.00316.71
7.2.130.0050.01016.86
7.2.120.0030.01016.90
7.2.110.0060.00917.11
7.2.100.0050.01216.86
7.2.90.0040.00816.81
7.2.80.0070.00916.97
7.2.70.0060.00817.15
7.2.60.0050.01416.88
7.2.50.0120.00116.95
7.2.40.0050.01317.03
7.2.30.0030.00917.01
7.2.20.0020.01016.93
7.2.10.0110.00516.78
7.2.00.0060.00516.91
7.1.330.0060.01016.02
7.1.320.0070.00715.79
7.1.310.0080.00515.82
7.1.300.0070.00315.80
7.1.290.0000.01515.82
7.1.280.0060.00915.97
7.1.270.0030.01215.76
7.1.260.0100.00015.84
7.1.250.0070.00715.81
7.1.240.0060.00815.70
7.1.230.0050.00915.80
7.1.220.0070.00515.69
7.1.210.0050.00615.84
7.1.200.0020.01215.95
7.1.190.0020.01015.77
7.1.180.0060.01015.81
7.1.170.0050.00915.81
7.1.160.0070.00715.81
7.1.150.0030.01115.77
7.1.140.0050.00915.59
7.1.130.0060.00815.77
7.1.120.0080.00415.73
7.1.110.0090.00415.80
7.1.100.0060.00716.54
7.1.90.0050.01015.86
7.1.80.0080.00615.71
7.1.70.0060.00616.23
7.1.60.0040.01316.92
7.1.50.0050.00916.29
7.1.40.0050.01215.63
7.1.30.0070.00815.85
7.1.20.0050.00915.82
7.1.10.0070.00615.67
7.1.00.0070.02617.93
7.0.330.0050.00815.23
7.0.320.0040.01315.64
7.0.310.0050.00815.34
7.0.300.0050.00815.54
7.0.290.0060.00715.49
7.0.280.0030.00915.63
7.0.270.0030.01015.44
7.0.260.0060.00615.34
7.0.250.0080.00515.38
7.0.240.0040.01115.63
7.0.230.0070.00815.46
7.0.220.0040.00815.41
7.0.210.0060.00815.37
7.0.200.0030.00615.79
7.0.190.0040.00615.43
7.0.180.0050.01115.50
7.0.170.0040.00915.44
7.0.160.0070.00615.53
7.0.150.0100.00215.43
7.0.140.0060.02917.62
7.0.130.0040.00815.60
7.0.120.0070.02617.61
7.0.110.0030.00815.59
7.0.100.0030.00915.38
7.0.90.0000.01415.57
7.0.80.0020.01215.35
7.0.70.0020.01315.36
7.0.60.0070.01716.93
7.0.50.0050.03316.21
7.0.40.0040.03314.95
7.0.30.0040.02215.02
7.0.20.0060.03514.98
7.0.10.0020.03515.10
7.0.00.0070.03115.03
5.6.400.0080.00814.58
5.6.390.0040.01114.66
5.6.380.0060.00514.32
5.6.370.0050.00814.22
5.6.360.0070.00714.34
5.6.350.0030.01014.45
5.6.340.0070.00414.56
5.6.330.0070.00414.14
5.6.320.0040.01214.23
5.6.310.0120.00214.18
5.6.300.0030.01314.41
5.6.290.0060.00614.46
5.6.280.0040.03116.62
5.6.270.0050.00914.38
5.6.260.0070.00714.54
5.6.250.0070.00314.36
5.6.240.0100.00714.43
5.6.230.0090.00714.48
5.6.220.0050.01014.59
5.6.210.0030.03316.46
5.6.200.0070.02515.77
5.6.190.0090.02715.61
5.6.180.0060.03115.55
5.6.170.0030.03415.54
5.6.160.0050.02115.67
5.6.150.0100.03115.60
5.6.140.0030.02015.54
5.6.130.0070.01615.59
5.6.120.0060.01715.65
5.6.110.0070.03315.63
5.6.100.0010.03015.59
5.6.90.0080.03015.73
5.6.80.0020.03415.30
5.6.70.0020.02115.45
5.6.60.0030.03515.30
5.6.50.0080.02615.32
5.6.40.0040.03115.29
5.6.30.0070.01715.25
5.6.20.0030.02115.31
5.6.10.0060.01915.32
5.6.00.0080.01615.34
5.5.380.0030.00812.99
5.5.370.0070.00512.96
5.5.360.0020.00813.10
5.5.350.0110.03015.39
5.5.340.0080.02414.63
5.5.330.0020.03114.56
5.5.320.0060.02914.56
5.5.310.0050.03014.65
5.5.300.0080.02614.63
5.5.290.0060.01714.58
5.5.280.0070.01614.64
5.5.270.0070.02814.49
5.5.260.0080.02214.71
5.5.250.0090.02914.63
5.5.240.0070.01714.31
5.5.230.0050.01614.39
5.5.220.0080.02414.47
5.5.210.0060.02914.31
5.5.200.0090.02714.36
5.5.190.0080.01514.39
5.5.180.0070.01714.33
5.5.170.0060.00812.88
5.5.160.0090.01414.48
5.5.150.0060.03014.46
5.5.140.0040.03414.40
5.5.130.0020.03214.42
5.5.120.0070.02714.45
5.5.110.0060.03114.40
5.5.100.0060.01714.38
5.5.90.0010.02514.30
5.5.80.0050.02914.39
5.5.70.0050.03114.34
5.5.60.0070.02714.39
5.5.50.0080.02714.31
5.5.40.0060.02914.25
5.5.30.0030.03214.29
5.5.20.0030.03114.34
5.5.10.0050.01914.36
5.5.00.0050.01714.26
5.4.450.0040.01714.00
5.4.440.0040.02413.90
5.4.430.0070.02913.99
5.4.420.0050.02013.88
5.4.410.0060.02313.99
5.4.400.0030.02013.82
5.4.390.0040.02413.78
5.4.380.0020.03013.83
5.4.370.0070.02513.83
5.4.360.0070.03113.81
5.4.350.0060.02013.75
5.4.340.0060.02713.88
5.4.330.0020.00611.21
5.4.320.0060.03013.82
5.4.310.0100.02513.79
5.4.300.0090.02713.76
5.4.290.0070.02813.78
5.4.280.0090.02713.89
5.4.270.0100.01613.83
5.4.260.0050.02613.85
5.4.250.0080.02913.69
5.4.240.0070.02013.77
5.4.230.0070.02613.74
5.4.220.0070.02413.75
5.4.210.0050.03213.89
5.4.200.0060.02413.76
5.4.190.0090.02413.85
5.4.180.0050.03113.85
5.4.170.0030.02713.77
5.4.160.0050.01613.70
5.4.150.0100.01313.78
5.4.140.0110.02312.96
5.4.130.0060.02612.95
5.4.120.0050.02912.86
5.4.110.0060.02912.93
5.4.100.0070.02712.97
5.4.90.0090.02413.06
5.4.80.0090.02212.99
5.4.70.0060.02713.04
5.4.60.0070.02813.03
5.4.50.0080.01512.95
5.4.40.0050.02412.94
5.4.30.0030.02112.86
5.4.20.0040.02412.84
5.4.10.0010.02012.96
5.4.00.0060.01712.78
5.3.290.0070.03012.26
5.3.280.0070.02912.17
5.3.270.0020.02912.19
5.3.260.0120.01112.24
5.3.250.0030.03112.22
5.3.240.0060.03012.13
5.3.230.0030.02412.20
5.3.220.0040.02912.15
5.3.210.0060.02112.12
5.3.200.0140.01412.19
5.3.190.0030.02212.16
5.3.180.0090.02412.21
5.3.170.0050.02712.16
5.3.160.0080.01912.09
5.3.150.0080.02012.22
5.3.140.0020.02712.16
5.3.130.0020.02812.19
5.3.120.0060.01712.22
5.3.110.0040.01612.16
5.3.100.0080.01511.99
5.3.90.0050.01512.03
5.3.80.0050.01511.91
5.3.70.0020.01711.98
5.3.60.0020.01512.06
5.3.50.0010.01711.95
5.3.40.0020.01711.91
5.3.30.0040.01611.95
5.3.20.0020.01611.87
5.3.10.0040.01611.85
5.3.00.0020.01811.76
5.2.170.0050.01511.39
5.2.160.0030.02011.38
5.2.150.0070.01511.38
5.2.140.0020.01911.30
5.2.130.0030.01711.32
5.2.120.0030.01611.33
5.2.110.0030.02011.26
5.2.100.0000.02411.33
5.2.90.0020.01811.35
5.2.80.0020.01811.25
5.2.70.0010.01611.35
5.2.60.0000.02011.33
5.2.50.0000.02011.32
5.2.40.0050.02011.33
5.2.30.0030.01511.21
5.2.20.0050.01711.30
5.2.10.0030.01711.25
5.2.00.0030.01711.19
5.1.60.0020.01210.83
5.1.50.0030.01510.77
5.1.40.0020.01610.80
5.1.30.0040.01411.01
5.1.20.0020.01411.00
5.1.10.0020.01710.87
5.1.00.0010.01510.83
5.0.50.0030.01110.07
5.0.40.0000.01410.01
5.0.30.0030.0149.90
5.0.20.0020.0129.96
5.0.10.0020.0109.94
5.0.00.0040.0159.93
4.4.90.0010.0099.48
4.4.80.0000.0109.48
4.4.70.0030.0089.48
4.4.60.0030.0089.48
4.4.50.0030.0069.48
4.4.40.0000.0179.48
4.4.30.0020.0109.48
4.4.20.0020.0109.48
4.4.10.0000.0119.48
4.4.00.0000.0179.48
4.3.110.0020.0109.48
4.3.100.0030.0089.48
4.3.90.0010.0089.48
4.3.80.0000.0149.48
4.3.70.0000.0119.48
4.3.60.0000.0109.48
4.3.50.0020.0089.48
4.3.40.0030.0139.48
4.3.30.0020.0089.48
4.3.20.0000.0129.48
4.3.10.0000.0109.48
4.3.00.0000.0119.48

preferences:
46.58 ms | 401 KiB | 5 Q