3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = function($p = 'abcde', $c = 'abc') { return substr($p, 0, strlen($c)) == $c; }; $test1 = function($p = 'abcde', $c = 'abc') { return strncmp($p, $c, strlen($c)); }; $print = function($closure, $s, $cycles = 100000) { for ($i =0; $i < $cycles; $i++) { $closure(); } echo printf('Runns: %.6f', microtime(1) - $s); echo PHP_EOL; }; $print($test, microtime(1)); $print($test1, microtime(1));

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)
7.4.00.0000.03614.77
7.3.120.0070.04115.20
7.3.110.0160.02514.99
7.3.100.0070.02715.00
7.3.90.0000.03214.61
7.3.80.0060.02515.12
7.3.70.0060.02914.89
7.3.60.0030.02714.87
7.3.50.0030.03014.80
7.3.40.0030.03014.83
7.3.30.0030.02814.79
7.3.20.0030.03016.81
7.3.10.0070.02916.63
7.3.00.0070.02716.68
7.2.250.0070.03315.00
7.2.240.0060.03214.84
7.2.230.0040.02915.29
7.2.220.0100.02315.09
7.2.210.0030.02915.10
7.2.200.0060.02615.25
7.2.190.0040.03215.07
7.2.180.0100.02615.06
7.2.170.0100.02515.16
7.2.00.0060.02619.41
7.1.330.0070.05716.11
7.1.320.0030.05915.93
7.1.310.0030.05915.70
7.1.300.0000.06415.43
7.1.290.0030.05915.76
7.1.280.0070.05615.77
7.1.270.0100.05315.67
7.1.260.0000.06215.59
7.1.70.0000.03017.19
7.1.60.0160.04519.33
7.1.50.0070.05716.64
7.1.00.0030.11022.54
7.0.200.0030.03516.86
7.0.140.0100.09721.95
7.0.60.0000.06719.88
7.0.50.0130.10317.88
7.0.40.0030.11720.11
7.0.30.0300.08020.19
7.0.20.0100.07720.16
7.0.10.0070.08320.23
7.0.00.0030.07020.33
5.6.280.0070.17320.83
5.6.210.0000.12020.66
5.6.200.0130.15718.19
5.6.190.0130.15020.52
5.6.180.3770.11020.35
5.6.170.0170.11720.45
5.6.160.0070.11320.50
5.6.150.0000.14318.18
5.6.140.0100.16718.16
5.6.130.0070.13018.18
5.6.120.0100.17021.06
5.6.110.0070.13021.15
5.6.100.0070.15320.99
5.6.90.0100.17721.04
5.6.80.0070.12020.38
5.6.70.4600.11320.29
5.5.350.0370.17020.35
5.5.340.0100.13318.04
5.5.330.0070.12020.27
5.5.320.0300.15320.32
5.5.310.0170.11720.34
5.5.300.0070.17017.99
5.5.290.0100.16017.98
5.5.280.0070.15720.86
5.5.270.0070.12020.80
5.5.260.0100.11720.88
5.5.250.0130.17020.69
5.5.240.0130.14720.23
5.4.450.0100.18019.39
5.4.440.0670.17019.46
5.4.430.0600.16319.21
5.4.420.0630.19019.66
5.4.410.0630.16019.41
5.4.400.1000.22718.93
5.4.390.0800.18719.16
5.4.380.0270.17718.54
5.4.370.0200.16718.47
5.4.360.0070.18018.80
5.4.350.0100.22318.59
5.4.340.0200.15718.75
5.4.320.0040.12112.50
5.4.310.0080.12312.50
5.4.300.0050.12912.51
5.4.290.0060.12112.50
5.4.280.0080.11512.40
5.4.270.0070.12312.40
5.4.260.0090.11812.41
5.4.250.0090.12712.40
5.4.240.0100.11512.40
5.4.230.0090.11512.39
5.4.220.0060.11612.40
5.4.210.0110.11812.39
5.4.200.0090.12812.40
5.4.190.0210.13112.38
5.4.180.0160.13812.37
5.4.170.0210.20512.39
5.4.160.0200.14112.38
5.4.150.0190.14312.38
5.4.140.0160.13312.06
5.4.130.0200.19612.05
5.4.120.0180.13812.00
5.4.110.0130.13312.00
5.4.100.0120.13312.00
5.4.90.0180.13612.00
5.4.80.0170.13312.00
5.4.70.0130.14012.00
5.4.60.0160.13612.00
5.4.50.0130.13812.00
5.4.40.0180.12811.98
5.4.30.0110.13911.98
5.4.20.0230.15311.98
5.4.10.0130.13811.98
5.4.00.0150.13311.47
5.3.290.0070.14712.80
5.3.280.0050.14012.71
5.3.270.0230.17812.73
5.3.260.0210.15012.72
5.3.250.0160.15712.72
5.3.240.0200.15012.72
5.3.230.0170.15712.71
5.3.220.0130.15312.68
5.3.210.0140.17012.68
5.3.200.0190.17812.68
5.3.190.0190.16212.68
5.3.180.0190.15212.67
5.3.170.0210.19912.67
5.3.160.0190.16012.68
5.3.150.0150.16512.67
5.3.140.0170.15812.66
5.3.130.0140.15912.66
5.3.120.0140.15812.66
5.3.110.0160.15412.66
5.3.100.0180.18312.11
5.3.90.0150.15412.10
5.3.80.0100.16312.08
5.3.70.0280.23812.08
5.3.60.0200.15312.07
5.3.50.0250.17712.01
5.3.40.0160.15212.01
5.3.30.0160.15311.98
5.3.20.0200.14511.76
5.3.10.0150.16111.73
5.3.00.0180.20211.70
5.2.170.0160.0319.16
5.2.160.0130.0339.16
5.2.150.0100.0369.16
5.2.140.0120.0349.16
5.2.130.0120.0339.12
5.2.120.0100.0359.12
5.2.110.0100.0379.13
5.2.100.0110.0359.12
5.2.90.0120.0339.11
5.2.80.0130.0339.11
5.2.70.0100.0369.11
5.2.60.0080.0389.07
5.2.50.0230.0549.04
5.2.40.0100.0379.01
5.2.30.0130.0338.98
5.2.20.0090.0388.98
5.2.10.0110.0348.90
5.2.00.0100.0358.75
5.1.60.0140.0278.05
5.1.50.0490.0548.05
5.1.40.0100.0298.03
5.1.30.0080.0348.38
5.1.20.0100.0328.40
5.1.10.0140.0288.12
5.1.00.0110.0308.12
5.0.50.0110.0236.60
5.0.40.0210.0416.46
5.0.30.0110.0346.27
5.0.20.0110.0236.25
5.0.10.0110.0226.22
5.0.00.0090.0356.21
4.4.90.0050.0204.78
4.4.80.0070.0184.76
4.4.70.0050.0204.75
4.4.60.0070.0184.76
4.4.50.0070.0184.77
4.4.40.0080.0284.71
4.4.30.0070.0194.76
4.4.20.0070.0184.84
4.4.10.0080.0174.85
4.4.00.0100.0264.76
4.3.110.0120.0154.67
4.3.100.0070.0184.67
4.3.90.0060.0184.64
4.3.80.0060.0284.59
4.3.70.0090.0164.63
4.3.60.0070.0174.63
4.3.50.0070.0174.63
4.3.40.0060.0284.53
4.3.30.0070.0183.28
4.3.20.0060.0183.27
4.3.10.0040.0203.23
4.3.00.0000.0237.78

preferences:
38.99 ms | 401 KiB | 5 Q