3v4l.org

run code in 300+ PHP versions simultaneously
<?php function validEmail($email) { $isValid = true; $atIndex = strrpos($email, "@"); if (is_bool($atIndex) && !$atIndex) { $isValid = false; } else { $domain = substr($email, $atIndex+1); $local = substr($email, 0, $atIndex); $localLen = strlen($local); $domainLen = strlen($domain); if ($localLen < 1 || $localLen > 64) { // local part length exceeded $isValid = false; } else if ($domainLen < 1 || $domainLen > 255) { // domain part length exceeded $isValid = false; } else if ($local[0] == '.' || $local[$localLen-1] == '.') { // local part starts or ends with '.' $isValid = false; } else if (preg_match('/\\.\\./', $local)) { // local part has two consecutive dots $isValid = false; } else if (!preg_match('/^[A-Za-z0-9\\-\\.]+$/', $domain)) { // character not valid in domain part $isValid = false; } else if (preg_match('/\\.\\./', $domain)) { // domain part has two consecutive dots $isValid = false; } else if (!preg_match('/^(\\\\.|[A-Za-z0-9!#%&`_=\\/$\'*+?^{}|~.-])+$/', str_replace("\\\\","",$local))) { // character not valid in local part unless // local part is quoted if (!preg_match('/^"(\\\\"|[^"])+"$/', str_replace("\\\\","",$local))) { $isValid = false; } } if ($isValid && !(checkdnsrr($domain,"MX") || checkdnsrr($domain,"A"))) { // domain not found in DNS $isValid = false; } } return $isValid; } $email = 'daniek@gmx.de'; var_dump(validEmail($email));

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)
8.3.70.0100.01017.00
8.3.60.0040.01118.55
8.3.50.0110.00922.30
8.3.40.0170.00319.39
8.3.30.0140.00019.17
8.3.20.0000.00720.49
8.3.10.0050.00322.29
8.3.00.0080.00022.68
8.2.190.0120.00616.63
8.2.180.0060.01616.88
8.2.170.0120.00322.96
8.2.160.0100.00322.55
8.2.150.0040.00424.18
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00019.86
8.2.110.0040.00722.50
8.2.100.0030.01020.01
8.2.90.0080.00019.55
8.2.80.0040.00418.18
8.2.70.0040.00417.88
8.2.60.0100.00018.18
8.2.50.0030.00618.07
8.2.40.0040.00418.41
8.2.30.0000.01118.23
8.2.20.0000.00718.14
8.2.10.0040.00419.75
8.2.00.0030.00518.17
8.1.280.0100.01025.92
8.1.270.0040.00422.39
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0030.00524.09
8.1.230.0070.00419.39
8.1.220.0080.00017.91
8.1.210.0080.00018.77
8.1.200.0070.00317.73
8.1.190.0000.00817.64
8.1.180.0030.00618.10
8.1.170.0000.00818.84
8.1.160.0030.00622.27
8.1.150.0050.00318.91
8.1.140.0040.00417.73
8.1.130.0030.00318.02
8.1.120.0000.00817.65
8.1.110.0000.00717.70
8.1.100.0040.00417.83
8.1.90.0040.00417.68
8.1.80.0040.00417.64
8.1.70.0070.00017.67
8.1.60.0050.00317.84
8.1.50.0050.00317.72
8.1.40.0060.00317.73
8.1.30.0000.00817.89
8.1.20.0040.00418.02
8.1.10.0000.00817.91
8.1.00.0000.00917.64
8.0.300.0040.00418.77
8.0.290.0040.00417.43
8.0.280.0000.00718.55
8.0.270.0030.00317.46
8.0.260.0030.00617.14
8.0.250.0000.00817.30
8.0.240.0030.00317.19
8.0.230.0080.00017.20
8.0.220.0030.00317.14
8.0.210.0000.00717.23
8.0.200.0000.00717.32
8.0.190.0080.00017.12
8.0.180.0040.00417.16
8.0.170.0030.00517.16
8.0.160.0030.00517.23
8.0.150.0000.00717.19
8.0.140.0000.00817.04
8.0.130.0000.00713.71
8.0.120.0000.00817.03
8.0.110.0000.00817.02
8.0.100.0000.00717.23
8.0.90.0000.00817.19
8.0.80.0040.01217.05
8.0.70.0080.00017.00
8.0.60.0030.00617.02
8.0.50.0030.00517.19
8.0.30.0110.00817.50
8.0.20.0110.01017.53
8.0.10.0040.00417.09
8.0.00.0140.00717.02
7.4.330.0000.00515.44
7.4.320.0040.00416.77
7.4.300.0000.00716.89
7.4.290.0030.00316.88
7.4.280.0000.00816.84
7.4.270.0040.00416.86
7.4.260.0030.00316.85
7.4.250.0080.00016.97
7.4.240.0000.00716.91
7.4.230.0000.00716.81
7.4.220.0130.00616.77
7.4.210.0100.00716.96
7.4.200.0030.00416.92
7.4.190.0050.00316.75
7.4.160.0120.00916.70
7.4.150.0090.00917.40
7.4.140.0100.01217.86
7.4.130.0160.00716.87
7.4.120.0120.00616.80
7.4.110.0060.01316.92
7.4.100.0120.00616.93
7.4.90.0100.00716.59
7.4.80.0040.01419.39
7.4.70.0120.01216.86
7.4.60.0080.00816.74
7.4.50.0060.00316.74
7.4.40.0110.00422.77
7.4.30.0160.00916.78
7.4.00.0030.01415.37
7.3.330.0070.00013.65
7.3.320.0030.00313.44
7.3.310.0000.00816.66
7.3.300.0030.00316.54
7.3.290.0030.01116.61
7.3.280.0100.00816.64
7.3.270.0030.01417.40
7.3.260.0120.00616.70
7.3.250.0110.00716.69
7.3.240.0140.00816.69
7.3.230.0070.01116.74
7.3.210.0040.01516.63
7.3.200.0090.00919.39
7.3.190.0150.00416.65
7.3.180.0110.00716.86
7.3.170.0100.01116.90
7.3.160.0130.00316.85
7.3.120.0060.01015.07
7.3.110.0050.01115.05
7.3.100.0060.00715.10
7.3.90.0090.00715.23
7.3.80.0070.00615.18
7.3.70.0110.00515.03
7.3.60.0030.00915.07
7.3.50.0100.00215.20
7.3.40.0080.00415.08
7.3.30.0080.00815.04
7.3.20.0050.01216.84
7.3.10.0080.00917.12
7.3.00.0060.00616.87
7.2.330.0140.00616.96
7.2.320.0110.01417.04
7.2.310.0120.00616.77
7.2.300.0140.00417.05
7.2.290.0090.00916.92
7.2.250.0060.01115.37
7.2.240.0100.00915.42
7.2.230.0060.00815.25
7.2.220.0050.00715.36
7.2.210.0080.00615.37
7.2.200.0070.00715.15
7.2.190.0090.00715.29
7.2.180.0040.01215.30
7.2.170.0030.00915.44
7.2.00.0040.01219.80
7.1.330.0080.00616.13
7.1.320.0030.00816.06
7.1.310.0070.00916.10
7.1.300.0030.00816.03
7.1.290.0020.01116.07
7.1.280.0080.00816.08
7.1.270.0070.01216.13
7.1.260.0070.00815.93
7.1.100.0090.00318.72
7.1.70.0000.00917.29
7.1.60.0090.01519.82
7.1.50.0090.01516.97
7.1.00.0000.08022.35
7.0.200.0000.00916.88
7.0.140.0030.07021.99
7.0.100.0200.05020.08
7.0.90.0170.07319.99
7.0.80.0130.06019.95
7.0.70.0130.07020.02
7.0.60.0170.07019.87
7.0.50.0170.09320.39
7.0.40.0070.08020.13
7.0.30.0170.07320.07
7.0.20.0100.08320.18
7.0.10.0030.08720.02
7.0.00.0030.05320.17
5.6.280.0170.06021.13
5.6.250.0130.07020.77
5.6.240.0030.06020.75
5.6.230.0170.07720.75
5.6.220.0030.06320.72
5.6.210.0170.07720.54
5.6.200.0100.08721.01
5.6.190.0000.04721.11
5.6.180.0100.04021.01
5.6.170.0070.04721.24
5.6.160.0030.08721.12
5.6.150.0070.04021.09
5.6.140.0030.08721.08
5.6.130.0030.03721.10
5.6.120.0130.08321.15
5.6.110.0070.04321.02
5.6.100.0100.08321.14
5.6.90.0200.07321.07
5.6.80.0030.04020.39
5.6.70.0130.03320.38
5.6.60.0100.06320.38
5.6.50.0100.08020.49
5.6.40.0070.07720.43
5.6.30.0200.05720.39
5.6.20.0070.08020.46
5.6.10.0100.03720.50
5.6.00.0100.05320.54
5.5.380.0000.04720.47
5.5.370.0170.06320.58
5.5.360.0000.05020.62
5.5.350.0030.06320.52
5.5.340.0100.06720.99
5.5.330.0070.07320.96
5.5.320.0100.08020.94
5.5.310.0070.04320.95
5.5.300.0170.07020.94
5.5.290.0070.07320.98
5.5.280.0070.04720.88
5.5.270.0100.08320.88
5.5.260.0030.05020.80
5.5.250.0130.06020.76
5.5.240.0130.07320.21
5.5.230.0070.08020.19
5.5.220.0130.03720.36
5.5.210.0100.05320.29
5.5.200.0030.04720.34
5.5.190.0070.08020.26
5.5.180.0100.04320.06
5.5.160.0170.06720.30
5.5.150.0030.07020.28
5.5.140.0100.04320.30
5.5.130.0130.06020.30
5.5.120.0030.04720.22
5.5.110.0030.08020.25
5.5.100.0100.05320.05
5.5.90.0030.06320.17
5.5.80.0030.06720.13
5.5.70.0070.08020.14
5.5.60.0070.07020.17
5.5.50.0100.07720.12
5.5.40.0070.05020.14
5.5.30.0070.04020.22
5.5.20.0100.05020.15
5.5.10.0130.05720.21
5.5.00.0130.05320.17
5.4.450.0070.07019.46
5.4.440.0070.04319.32
5.4.430.0070.06719.53
5.4.420.0030.08319.45
5.4.410.0130.04019.31
5.4.400.0000.07019.00
5.4.390.0030.04319.12
5.4.380.0070.04319.29
5.4.370.0100.06319.27
5.4.360.0230.06719.30
5.4.350.0100.07719.30
5.4.340.0070.07319.18
5.4.320.0100.04718.96
5.4.310.0030.04019.32
5.4.300.0030.08019.14
5.4.290.0070.07719.22
5.4.280.0070.05319.31
5.4.270.0100.05719.29
5.4.260.0070.07019.12
5.4.250.0100.06719.13
5.4.240.0000.07719.20
5.4.230.0170.06719.11
5.4.220.0230.05319.21
5.4.210.0100.06719.24
5.4.200.0070.04019.26
5.4.190.0070.07319.12
5.4.180.0100.07719.13
5.4.170.0030.07719.20
5.4.160.0030.08018.98
5.4.150.0030.08019.23
5.4.140.0030.08016.56
5.4.130.0070.04316.32
5.4.120.0030.03716.55
5.4.110.0000.04016.50
5.4.100.0100.02716.64
5.4.90.0030.04016.63
5.4.80.0070.03016.51
5.4.70.0030.03016.59
5.4.60.0100.03016.54
5.4.50.0030.03716.48
5.4.40.0070.02716.45
5.4.30.0070.03016.56
5.4.20.0070.04716.44
5.4.10.0030.03716.41
5.4.00.0000.03315.89
5.3.290.0000.07714.64
5.3.280.0030.04014.68
5.3.270.0070.04014.62
5.3.260.0070.06014.70
5.3.250.0130.07014.68
5.3.240.0070.04014.76
5.3.230.0070.04014.59
5.3.220.0070.04014.53
5.3.210.0100.04014.63
5.3.200.0030.03714.60
5.3.190.0030.03714.59
5.3.180.0030.04014.58
5.3.170.0000.03714.58
5.3.160.0030.03714.59
5.3.150.0030.03714.75
5.3.140.0000.04014.56
5.3.130.0100.02714.52
5.3.120.0000.04014.57
5.3.110.0000.03714.73
5.3.100.0000.03314.01
5.3.90.0100.02314.09
5.3.80.0070.03314.11
5.3.70.0000.03313.99
5.3.60.0000.04314.00
5.3.50.0070.03713.98
5.3.40.0030.03014.08
5.3.30.0000.04013.98
5.3.20.0000.03313.83
5.3.10.0070.03013.64
5.3.00.0070.03013.77
5.2.170.0000.03311.28
5.2.160.0000.03711.09
5.2.150.0000.03311.09
5.2.140.0030.03011.11
5.2.130.0000.02711.13
5.2.120.0030.02711.12
5.2.110.0000.03011.15
5.2.100.0100.02311.25
5.2.90.0000.03011.14
5.2.80.0030.03711.18
5.2.70.0070.02011.05
5.2.60.0030.03011.18
5.2.50.0000.03311.13
5.2.40.0070.02711.14
5.2.30.0000.02711.01
5.2.20.0030.03011.06
5.2.10.0000.03011.00
5.2.00.0000.02710.69
5.1.60.0000.0279.92
5.1.50.0070.02010.04
5.1.40.0000.02710.02
5.1.30.0030.02010.50
5.1.20.0000.02310.53
5.1.10.0030.02310.10
5.1.00.0000.03010.20
5.0.50.0030.0208.66
5.0.40.0030.0178.66
5.0.30.0070.0278.66
5.0.20.0000.0208.66
5.0.10.0000.0208.66
5.0.00.0000.0308.66
4.4.90.0000.0138.66
4.4.80.0030.0138.66
4.4.70.0000.0138.66
4.4.60.0030.0108.66
4.4.50.0030.0178.66
4.4.40.0000.0278.66
4.4.30.0030.0138.66
4.4.20.0030.0138.66
4.4.10.0000.0178.66
4.4.00.0000.0238.66
4.3.110.0030.0138.66
4.3.100.0030.0138.66
4.3.90.0030.0108.66
4.3.80.0000.0238.66
4.3.70.0000.0138.66
4.3.60.0000.0178.66
4.3.50.0000.0138.66
4.3.40.0000.0238.66
4.3.30.0000.0178.66
4.3.20.0000.0178.66
4.3.10.0000.0178.66
4.3.00.0030.0138.66

preferences:
45.58 ms | 401 KiB | 5 Q