3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Tracking { function __construct($client_id) {} function createIdent($charcount) { $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; $x = 0; while ($x <= $charcount) { $ident .= substr($chars, mt_rand(0, strlen($chars) - 1), 1); $x++; } return $ident; } } $tracking = new Tracking(1477); echo $tracking->createIdent(7);

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)
7.4.10.0070.01316.61
7.4.00.0070.01315.78
7.3.130.0110.00716.33
7.3.120.0050.00915.64
7.3.110.0100.00715.74
7.3.100.0050.00915.77
7.3.90.0080.00615.60
7.3.80.0030.01015.58
7.3.70.0070.00715.60
7.3.60.0080.00415.65
7.3.50.0070.00815.63
7.3.40.0060.00615.65
7.3.30.0060.00915.65
7.3.20.0020.01117.30
7.3.10.0080.00417.47
7.3.00.0090.00717.26
7.2.260.0030.01616.77
7.2.250.0070.01115.67
7.2.240.0100.01015.90
7.2.230.0020.01115.96
7.2.220.0100.00315.74
7.2.210.0110.00415.98
7.2.200.0070.00915.82
7.2.190.0030.01115.78
7.2.180.0130.00315.79
7.2.170.0060.01015.75
7.2.160.0150.00316.50
7.2.150.0060.00918.39
7.2.140.0040.01118.31
7.2.130.0070.01018.52
7.2.120.0140.00018.34
7.2.110.0110.00718.32
7.2.100.0030.00918.32
7.2.90.0000.02018.38
7.2.80.0040.01418.47
7.2.70.0000.01518.27
7.2.60.0030.01018.46
7.2.50.0060.00918.32
7.2.40.0090.00618.32
7.2.30.0060.00618.30
7.2.20.0150.00318.18
7.2.10.0040.01118.25
7.2.00.0020.01418.92
7.1.330.0080.00616.63
7.1.320.0080.00616.61
7.1.310.0030.00916.63
7.1.300.0050.01016.57
7.1.290.0040.00716.62
7.1.280.0050.01016.43
7.1.270.0050.00916.70
7.1.260.0080.00816.52
7.1.250.0070.01017.31
7.1.240.0070.00717.27
7.1.230.0080.00617.27
7.1.220.0030.01417.39
7.1.210.0030.01017.32
7.1.200.0080.00817.23
7.1.190.0030.00917.18
7.1.180.0030.01217.34
7.1.170.0040.01117.47
7.1.160.0110.00017.31
7.1.150.0070.01017.26
7.1.140.0070.01017.29
7.1.130.0070.01017.26
7.1.120.0080.00817.30
7.1.110.0030.00717.17
7.1.100.0070.01017.47
7.1.90.0090.00317.27
7.1.80.0130.00317.35
7.1.70.0020.00717.21
7.1.60.0050.00817.32
7.1.50.0080.00916.99
7.1.40.0040.01417.23
7.1.30.0150.00417.44
7.1.20.0060.00617.29
7.1.10.0080.00817.23
7.1.00.0040.02319.82
7.0.330.0070.01017.11
7.0.320.0030.01516.86
7.0.310.0070.01016.89
7.0.300.0090.00316.99
7.0.290.0000.01216.93
7.0.280.0030.01616.89
7.0.270.0160.00016.95
7.0.260.0000.01417.04
7.0.250.0070.01016.88
7.0.240.0100.00316.84
7.0.230.0060.00617.21
7.0.220.0040.01116.89
7.0.210.0090.00317.19
7.0.200.0020.01016.88
7.0.190.0080.00616.98
7.0.180.0030.01316.88
7.0.170.0030.01217.06
7.0.160.0060.00616.82
7.0.150.0030.00617.18
7.0.140.0010.04619.59
7.0.130.0090.00616.88
7.0.120.0100.00317.01
7.0.110.0070.00717.11
7.0.100.0040.01116.95
7.0.90.0040.00417.05
7.0.80.0030.00917.01
7.0.70.2450.03018.45
7.0.60.0100.03718.44
7.0.50.0120.04217.38
7.0.40.0090.02317.61
7.0.30.0170.02717.51
7.0.20.0170.04517.61
7.0.10.0130.03017.65
7.0.00.0050.04717.57
5.6.400.0100.00616.11
5.6.390.0120.00315.98
5.6.380.0070.01116.20
5.6.370.0060.01216.00
5.6.360.0080.00416.01
5.6.350.0060.01015.63
5.6.340.0000.01915.66
5.6.330.0070.01115.70
5.6.320.0030.01315.97
5.6.310.0070.00715.92
5.6.300.0040.01115.74
5.6.290.0060.00916.25
5.6.280.0130.03518.50
5.6.270.0060.00315.99
5.6.260.0090.00315.79
5.6.250.0070.00716.07
5.6.240.0000.01415.77
5.6.230.0030.01015.81
5.6.220.0040.01115.84
5.6.210.0120.03818.32
5.6.200.0070.02717.00
5.6.190.0070.05018.12
5.6.180.0130.04318.29
5.6.170.0080.02818.11
5.6.160.0030.03118.18
5.6.150.0080.02317.03
5.6.140.0070.02216.90
5.6.130.0050.03317.15
5.6.120.0070.02218.35
5.6.110.0120.04318.39
5.6.100.0050.04018.45
5.6.90.0030.02618.62
5.6.80.0110.03818.07
5.6.70.0200.03218.05
5.6.60.0120.00015.67
5.6.50.0080.00415.50
5.6.40.0000.01315.58
5.6.30.0040.01515.56
5.6.20.0040.01415.75
5.6.10.0070.00715.84
5.6.00.0100.00616.03
5.5.380.0040.01415.84
5.5.370.0040.00815.89
5.5.360.0070.01016.15
5.5.350.0020.02718.09
5.5.340.0120.04216.94
5.5.330.0100.04318.20
5.5.320.0000.03818.07
5.5.310.0200.03918.25
5.5.300.0030.02616.94
5.5.290.0040.02516.91
5.5.280.0030.03618.34
5.5.270.0100.04518.43
5.5.260.0120.03018.30
5.5.250.0090.04018.14
5.5.240.0100.03317.93
5.5.230.0060.00815.67
5.5.220.0150.00315.94
5.5.210.0040.01415.82
5.5.200.0120.00615.84
5.5.190.0090.01215.98
5.5.180.0090.00215.88
5.5.170.0070.00715.95
5.5.160.0070.01015.79
5.5.150.0040.01215.62
5.5.140.0090.00615.64
5.5.130.0090.00615.99
5.5.120.0130.00315.71
5.5.110.0070.01015.85
5.5.100.0070.00715.84
5.5.90.0040.01115.98
5.5.80.0030.01015.92
5.5.70.0000.01315.54
5.5.60.0090.00915.78
5.5.50.0070.00715.60
5.5.40.0090.00915.79
5.5.30.0090.00615.76
5.5.20.0040.01115.91
5.5.10.0060.00915.80
5.5.00.0030.01215.83
5.4.450.0110.03615.93
5.4.440.0070.03316.07
5.4.430.0160.02715.89
5.4.420.0490.03416.09
5.4.410.0500.03816.20
5.4.400.0630.03515.92
5.4.390.0140.02515.88
5.4.380.0130.03015.64
5.4.370.0070.02215.63
5.4.360.0160.02515.75
5.4.350.0080.02012.38
5.4.340.0040.02712.31
5.4.330.0000.01312.74
5.4.320.0060.02612.47
5.4.310.0050.02412.54
5.4.300.0060.02012.63
5.4.290.0060.02012.52
5.4.280.0040.02212.50
5.4.270.0020.02512.49
5.4.260.0020.02512.49
5.4.250.0050.03115.79
5.4.240.0070.02815.87
5.4.230.0050.03015.86
5.4.220.0020.03615.63
5.4.210.0080.03015.80
5.4.200.0010.03915.78
5.4.190.0110.02615.79
5.4.180.0080.03215.76
5.4.170.0080.02915.70
5.4.160.0030.03315.59
5.4.150.0050.03615.56
5.4.140.0100.03214.37
5.4.130.0070.02614.54
5.4.120.0030.02814.46
5.4.110.0070.02714.62
5.4.100.0030.03114.64
5.4.90.0070.02614.58
5.4.80.0040.02614.66
5.4.70.0050.02814.68
5.4.60.0070.02714.70
5.4.50.0040.02914.65
5.4.40.0040.03014.57
5.4.30.0110.02814.50
5.4.20.0130.02114.68
5.4.10.0100.02814.54
5.4.00.0070.02714.28
5.3.290.0080.01912.98
5.3.280.0070.03413.89
5.3.270.0100.03013.90
5.3.260.0050.03513.95
5.3.250.0070.02813.87
5.3.240.0070.03513.74
5.3.230.0050.02813.90
5.3.220.0050.03113.92
5.3.210.0080.03013.93
5.3.200.0070.02813.83
5.3.190.0080.02713.82
5.3.180.0080.02713.79
5.3.170.0120.03714.00
5.3.160.0020.03113.85
5.3.150.0030.02813.96
5.3.140.0100.03514.03
5.3.130.0030.03513.89
5.3.120.0070.03013.75
5.3.110.0050.03213.92
5.3.100.0070.03113.60
5.3.90.0070.02813.63
5.3.80.0070.02713.56
5.3.70.0050.03013.56
5.3.60.0080.02713.53
5.3.50.0080.02813.40
5.3.40.0070.03013.48
5.3.30.0050.03113.51
5.3.20.0090.02513.41
5.3.10.0100.02513.26
5.3.00.0030.03213.22
5.2.170.0030.04311.12
5.2.160.0070.04011.22
5.2.150.0000.04711.23
5.2.140.0070.04011.30
5.2.130.0070.03711.27
5.2.120.0030.04011.01
5.2.110.0030.04311.33
5.2.100.0070.03711.27
5.2.90.0100.03711.17
5.2.80.0030.04311.25
5.2.70.0100.03311.26
5.2.60.0070.04311.21
5.2.50.0070.04011.09
5.2.40.0130.03711.21
5.2.30.0100.04011.05
5.2.20.0030.04010.93
5.2.10.0030.04010.83
5.2.00.0100.03710.91
5.1.60.0070.03310.05
5.1.50.0000.03710.07
5.1.40.0000.0409.98
5.1.30.0030.05310.35
5.1.20.0070.03310.34
5.1.10.0070.04710.16
5.1.00.0070.03310.22
5.0.50.0030.0278.60
5.0.40.0130.0178.48
5.0.30.0000.0438.42
5.0.20.0100.0208.03
5.0.10.0000.0308.01
5.0.00.0030.0408.21
4.4.90.0030.0236.26
4.4.80.0030.0206.26
4.4.70.0070.0176.26
4.4.60.0000.0236.26
4.4.50.0000.0236.26
4.4.40.0000.0336.26
4.4.30.0000.0236.26
4.4.20.0070.0206.26
4.4.10.0100.0136.26
4.4.00.0000.0376.26
4.3.110.0000.0236.98
4.3.100.0070.0176.98
4.3.90.0030.0206.98
4.3.80.0030.0306.98
4.3.70.0030.0206.98
4.3.60.0030.0176.98
4.3.50.0000.0236.98
4.3.40.0030.0306.98
4.3.30.0000.0236.98
4.3.20.0030.0206.98
4.3.10.0030.0206.98
4.3.00.0030.0237.30

preferences:
41.73 ms | 401 KiB | 5 Q