3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = '1234@#$ABCFG3478&*'; if (preg_match('/[a-z]/i', $string, $match)) { $firstLetter = $match[0]; } else { // there's no letters in string } echo $firstLetter;

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)
8.3.40.0090.00618.68
8.3.30.0120.00319.06
8.3.20.0040.00420.34
8.3.10.0040.00423.64
8.3.00.0040.00419.19
8.2.170.0070.00722.96
8.2.160.0140.00722.18
8.2.150.0070.00024.18
8.2.140.0000.00824.66
8.2.130.0000.00726.16
8.2.120.0040.00421.13
8.2.110.0070.00319.27
8.2.100.0040.00818.03
8.2.90.0000.00817.75
8.2.80.0000.00819.16
8.2.70.0080.00017.93
8.2.60.0040.00418.28
8.2.50.0050.00318.10
8.2.40.0040.00419.30
8.2.30.0000.00719.27
8.2.20.0070.00018.02
8.2.10.0050.00318.20
8.2.00.0040.00417.76
8.1.270.0040.00418.77
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0100.00023.82
8.1.230.0040.00720.95
8.1.220.0040.00417.77
8.1.210.0080.00018.77
8.1.200.0100.00017.35
8.1.190.0040.00417.36
8.1.180.0050.00318.10
8.1.170.0060.00318.73
8.1.160.0030.00519.07
8.1.150.0000.00818.85
8.1.140.0000.00717.53
8.1.130.0000.00717.84
8.1.120.0070.00017.38
8.1.110.0020.00517.43
8.1.100.0040.00417.50
8.1.90.0030.00317.53
8.1.80.0030.00517.55
8.1.70.0000.00717.51
8.1.60.0080.00017.52
8.1.50.0080.00017.65
8.1.40.0040.00417.53
8.1.30.0050.00517.64
8.1.20.0000.00817.64
8.1.10.0000.00817.63
8.1.00.0050.00317.68
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0080.00018.37
8.0.270.0000.00717.32
8.0.260.0000.00617.26
8.0.250.0040.00317.06
8.0.240.0030.00316.98
8.0.230.0030.00517.05
8.0.220.0000.00716.96
8.0.210.0000.00716.94
8.0.200.0050.00317.07
8.0.190.0000.00717.09
8.0.180.0030.00317.00
8.0.170.0080.00016.84
8.0.160.0040.00416.86
8.0.150.0040.00416.90
8.0.140.0040.00316.90
8.0.130.0030.00313.40
8.0.120.0060.00316.84
8.0.110.0040.00417.03
8.0.100.0040.00416.86
8.0.90.0000.00716.95
8.0.80.0070.01016.95
8.0.70.0030.00516.90
8.0.60.0040.00416.86
8.0.50.0040.00416.80
8.0.30.0150.01017.34
8.0.20.0100.01217.40
8.0.10.0040.00417.03
8.0.00.0090.01016.95
7.4.330.0000.00515.03
7.4.320.0000.00716.71
7.4.300.0030.00316.70
7.4.290.0030.00516.61
7.4.280.0040.00416.57
7.4.270.0070.00016.70
7.4.260.0000.00816.71
7.4.250.0040.00416.65
7.4.240.0000.00716.68
7.4.230.0070.00016.71
7.4.220.0150.00316.64
7.4.210.0070.00716.78
7.4.200.0000.00716.69
7.4.160.0080.00816.72
7.4.150.0090.00917.40
7.4.140.0060.01317.86
7.4.130.0110.00616.66
7.4.120.0070.01216.72
7.4.110.0110.01016.54
7.4.100.0030.01516.57
7.4.90.0070.01016.42
7.4.80.0150.00419.39
7.4.70.0030.01416.71
7.4.60.0080.01116.78
7.4.50.0000.00616.54
7.4.40.0120.00916.62
7.4.30.0070.01016.54
7.4.10.0060.01015.07
7.4.00.0030.01215.02
7.3.330.0000.00613.14
7.3.320.0020.00213.24
7.3.310.0030.00316.26
7.3.300.0070.00016.34
7.3.290.0090.00716.38
7.3.280.0060.01116.38
7.3.270.0130.00317.40
7.3.260.0060.01216.47
7.3.250.0070.01016.47
7.3.240.0100.01016.39
7.3.230.0030.01416.45
7.3.210.0120.00616.61
7.3.200.0130.00619.39
7.3.190.0100.00616.67
7.3.180.0100.00616.30
7.3.170.0110.00716.38
7.3.160.0130.00316.46
7.3.130.0130.00614.95
7.3.120.0060.01214.92
7.3.110.0040.01515.19
7.3.100.0090.00314.71
7.3.90.0030.01014.90
7.3.80.0070.00315.16
7.3.70.0100.00314.97
7.3.60.0060.00615.03
7.3.50.0100.00315.01
7.3.40.0030.01015.11
7.3.30.0040.01214.98
7.3.20.0070.00716.70
7.3.10.0090.00616.84
7.3.00.0030.00616.89
7.2.330.0110.00716.80
7.2.320.0100.00716.74
7.2.310.0040.01216.88
7.2.300.0140.00416.80
7.2.290.0070.01116.93
7.2.260.0070.01315.15
7.2.250.0140.00715.04
7.2.240.0000.01615.21
7.2.230.0030.00714.87
7.2.220.0040.01215.08
7.2.210.0000.01415.34
7.2.200.0070.00415.36
7.2.190.0090.00615.20
7.2.180.0000.01414.88
7.2.170.0070.00715.20
7.2.160.0000.01314.92
7.2.150.0040.01117.21
7.2.140.0060.00916.93
7.2.130.0050.00517.14
7.2.120.0000.01116.84
7.2.110.0140.00017.01
7.2.100.0060.00617.19
7.2.90.0100.00317.23
7.2.80.0060.00616.96
7.2.70.0100.01016.71
7.2.60.0100.00717.14
7.2.50.0100.00717.13
7.2.40.0110.00416.80
7.2.30.0070.01017.10
7.2.20.0080.00817.14
7.2.10.0060.00616.76
7.2.00.0020.00918.36
7.1.330.0000.01516.08
7.1.320.0130.00315.79
7.1.310.0060.00615.72
7.1.300.0000.01115.89
7.1.290.0080.00416.13
7.1.280.0000.01215.88
7.1.270.0070.00316.10
7.1.260.0040.00715.85
7.1.250.0000.00815.96
7.1.240.0070.00315.75
7.1.230.0030.00616.02
7.1.220.0040.00815.74
7.1.210.0100.00315.90
7.1.200.0040.00816.07
7.1.190.0040.01116.02
7.1.180.0120.00316.13
7.1.170.0070.00315.96
7.1.160.0060.00915.56
7.1.150.0090.00616.07
7.1.140.0060.00915.91
7.1.130.0090.00616.11
7.1.120.0000.01315.72
7.1.110.0030.01015.99
7.1.100.0060.00716.89
7.1.90.0150.00016.02
7.1.80.0070.00315.90
7.1.70.0020.00916.43
7.1.60.0070.01017.61
7.1.50.0090.00916.61
7.1.40.0040.01015.74
7.1.30.0100.00316.02
7.1.20.0060.00915.65
7.1.10.0070.00315.74
7.1.00.0070.04219.19
7.0.330.0080.00415.54
7.0.320.0030.00515.57
7.0.310.0030.01015.44
7.0.300.0060.00315.69
7.0.290.0040.01115.63
7.0.280.0030.01215.47
7.0.270.0130.00015.50
7.0.260.0100.00015.26
7.0.250.0030.00715.75
7.0.240.0070.00715.84
7.0.230.0050.00515.64
7.0.220.0040.00715.44
7.0.210.0030.01315.36
7.0.200.0030.00716.03
7.0.190.0080.00415.55
7.0.180.0040.00415.41
7.0.170.0060.00615.43
7.0.160.0030.00615.38
7.0.150.0030.01015.71
7.0.140.0050.03118.76
7.0.130.0070.00715.61
7.0.120.0030.01215.64
7.0.110.0030.00615.17
7.0.100.0060.01015.39
7.0.90.0110.00715.80
7.0.80.0070.01015.62
7.0.70.0040.01115.44
7.0.60.0050.02417.76
7.0.50.0030.02816.74
7.0.40.0070.02316.94
7.0.30.0230.03216.92
7.0.20.0120.03516.90
7.0.10.0020.02816.91
7.0.00.0030.05016.88
5.6.400.0080.00414.54
5.6.390.0030.00914.52
5.6.380.0100.00014.23
5.6.370.0040.01114.36
5.6.360.0060.00914.69
5.6.350.0000.01414.52
5.6.340.0080.00414.50
5.6.330.0030.00614.58
5.6.320.0140.00014.54
5.6.310.0070.00414.63
5.6.300.0000.00914.46
5.6.290.0030.01014.11
5.6.280.0050.04017.76
5.6.270.0060.00314.54
5.6.260.0000.01414.45
5.6.250.0080.00314.27
5.6.240.0130.00314.42
5.6.230.0030.00514.35
5.6.220.0090.00314.50
5.6.210.0070.04217.53
5.6.200.0050.04616.27
5.6.190.0070.04217.54
5.6.180.0170.04317.26
5.6.170.0160.03917.22
5.6.160.0080.02817.28
5.6.150.0080.04316.35
5.6.140.0100.03716.32
5.6.130.0070.03716.31
5.6.120.0050.04317.60
5.6.110.0060.04817.66
5.6.100.0080.04317.77
5.6.90.0070.03217.78
5.6.80.0030.04917.57
5.6.70.0060.00914.63
5.6.60.0060.01014.31
5.6.50.0080.00414.00
5.6.40.0000.01414.49
5.6.30.0080.00414.50
5.6.20.0060.00614.21
5.6.10.0090.00314.60
5.6.00.0030.00614.56
5.5.380.0040.00914.55
5.5.370.0060.00314.50
5.5.360.0080.00314.21
5.5.350.2000.02517.29
5.5.340.0050.02116.20
5.5.330.0020.03417.21
5.5.320.0190.02317.30
5.5.310.0080.03817.47
5.5.300.0100.03816.18
5.5.290.0080.03016.05
5.5.280.0070.04817.52
5.5.270.0080.02317.59
5.5.260.0050.02317.54
5.5.250.0090.04017.36
5.5.240.0050.02017.18
5.5.230.0070.00314.10
5.5.220.0060.00614.13
5.5.210.0030.00914.05
5.5.200.0030.00714.18
5.5.190.0070.00714.41
5.5.180.0030.00914.32
5.5.170.0070.00714.35
5.5.160.0090.00614.04
5.5.150.0080.00414.37
5.5.140.0000.01414.46
5.5.130.0100.00314.17
5.5.120.0000.01114.00
5.5.110.0090.00614.35
5.5.100.0080.00614.16
5.5.90.0040.00814.36
5.5.80.0110.00014.18
5.5.70.0030.01214.39
5.5.60.0050.00513.98
5.5.50.0060.01214.30
5.5.40.0110.00014.34
5.5.30.0040.01114.33
5.5.20.0030.00614.29
5.5.10.0110.00414.30
5.5.00.0060.01214.02
5.4.450.0360.03315.30
5.4.440.0380.02815.38
5.4.430.0370.02515.12
5.4.420.0090.02915.24
5.4.410.0250.03615.19
5.4.400.0330.02814.92
5.4.390.0120.03714.77
5.4.380.0180.02614.76
5.4.370.0220.02714.78
5.4.360.0200.02814.80
5.4.350.0200.03514.63
5.4.340.0200.02714.75
5.4.330.0030.00711.00
5.4.320.0170.03014.91
5.4.310.0150.03214.67
5.4.300.0230.02814.90
5.4.290.0150.02914.83
5.4.280.0230.02114.66
5.4.270.0120.03214.86
5.4.260.0180.02814.68
5.4.250.0120.03414.78
5.4.240.0270.03114.68
5.4.230.0190.03214.92
5.4.220.0220.04214.79
5.4.210.0180.04114.69
5.4.200.0150.03413.68
5.4.190.0270.02814.60
5.4.180.0310.03514.55
5.4.170.0280.03714.80
5.4.160.0220.03014.67
5.4.150.0220.02914.88
5.4.140.0220.03113.70
5.4.130.0220.03213.61
5.4.120.0220.03713.50
5.4.110.0240.03213.61
5.4.100.0180.02613.44
5.4.90.0180.03713.70
5.4.80.0220.02513.57
5.4.70.0150.03313.67
5.4.60.0170.03513.63
5.4.50.0220.02513.67
5.4.40.0150.03513.56
5.4.30.0130.03013.68
5.4.20.0180.03213.67
5.4.10.0170.03613.65
5.4.00.0180.02713.24
5.3.290.0370.05314.66
5.3.280.0370.06714.64
5.3.270.0400.06314.65
5.3.260.0470.07314.55
5.3.250.0370.06014.59
5.3.240.0500.04314.58
5.3.230.0370.04714.59
5.3.220.0300.04714.55
5.3.210.0300.05014.52
5.3.200.0230.05714.61
5.3.190.0430.05014.48
5.3.180.0370.05014.54
5.3.170.0270.05014.52
5.3.160.0200.05714.46
5.3.150.0300.05014.50
5.3.140.0300.04714.57
5.3.130.0270.05714.47
5.3.120.0430.05314.48
5.3.110.0270.06014.52
5.3.100.0330.05714.13
5.3.90.0330.05314.00
5.3.80.0300.07014.11
5.3.70.0370.07314.00
5.3.60.0370.06313.95
5.3.50.0100.05313.89
5.3.40.0200.04313.93
5.3.30.0070.05313.89
5.3.20.0400.05013.69
5.3.10.0270.05013.57
5.3.00.0270.05713.62
5.2.170.0170.05011.12
5.2.160.0270.05011.28
5.2.150.0230.05011.19
5.2.140.0230.04711.18
5.2.130.0500.04711.11
5.2.120.0300.03311.15
5.2.110.0200.04711.10
5.2.100.0330.03311.11
5.2.90.0230.04011.09
5.2.80.0230.04011.08
5.2.70.0300.03311.07
5.2.60.0300.04011.05
5.2.50.0330.03711.05
5.2.40.0170.06310.91
5.2.30.0130.05011.01
5.2.20.0370.05711.07
5.2.10.0230.04310.85
5.2.00.0170.04710.75
5.1.60.0130.03310.05
5.1.50.0200.03710.11
5.1.40.0200.03710.02
5.1.30.0200.04010.34
5.1.20.0200.04310.32
5.1.10.0270.03310.18
5.1.00.0230.03710.08
5.0.50.0170.0308.54
5.0.40.0070.0438.47
5.0.30.0200.0538.25
5.0.20.0130.0308.37
5.0.10.0170.0308.29
5.0.00.0070.0478.16
4.4.90.0200.0235.86
4.4.80.0100.0275.87
4.4.70.0200.0205.89
4.4.60.0130.0205.87
4.4.50.0130.0205.90
4.4.40.0130.0535.90
4.4.30.0170.0305.82
4.4.20.0170.0175.96
4.4.10.0100.0235.95
4.4.00.0130.0335.91
4.3.110.0130.0305.86
4.3.100.0130.0275.85
4.3.90.0130.0235.77
4.3.80.0100.0335.81
4.3.70.0170.0275.78
4.3.60.0030.0335.77
4.3.50.0170.0275.86
4.3.40.0130.0475.73
4.3.30.0100.0274.66
4.3.20.0170.0174.61
4.3.10.0030.0274.55
4.3.00.0170.0206.70

preferences:
46.76 ms | 400 KiB | 5 Q