3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Start set_time_limit(0); echo "<pre>"; // Normal Recusion function m1($num) { return $num === 0 ? 1 : $num * m1($num - 1); } // Tail Recusion function m2($num) { return m2Helper($num, 1); } // Tail Recusion Helper function m2Helper($num, $acc) { return $num === 0 ? $acc : m2($num - 1, $acc * $num); } $result = array('m1' => 0,'m2' => 0); $no = 100; for($i = 0; $i < 1; ++ $i) { foreach ( array_keys($result) as $key ) { $alpha = microtime(true); $key($no); $result[$key] += microtime(true) - $alpha; } } echo '<pre>'; echo "Single Run\n"; print_r($result); echo '</pre>'; ?>

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)
7.4.10.0060.01216.58
7.4.00.0020.01515.95
7.3.130.0090.00916.32
7.3.120.0050.01115.54
7.3.110.0030.01315.65
7.3.100.0080.00815.81
7.3.90.0060.00615.53
7.3.80.0050.00815.66
7.3.70.0050.01015.59
7.3.60.0070.01015.55
7.3.50.0030.01015.67
7.3.40.0100.00615.56
7.3.30.0050.00915.67
7.3.20.0050.00517.30
7.3.10.0020.01317.29
7.3.00.0060.00917.43
7.2.260.0070.01016.83
7.2.250.0130.00815.85
7.2.240.0030.01315.70
7.2.230.0050.01015.81
7.2.220.0100.00715.88
7.2.210.0130.00115.79
7.2.200.0060.00915.86
7.2.190.0000.01615.83
7.2.180.0020.01515.88
7.2.170.0090.00715.89
7.2.160.0040.01116.67
7.2.150.0030.01018.23
7.2.140.0000.01418.29
7.2.130.0070.01018.36
7.2.120.0130.00318.50
7.2.110.0060.01318.47
7.2.100.0050.00518.49
7.2.90.0060.01218.26
7.2.80.0120.00618.52
7.2.70.0070.01018.35
7.2.60.0070.01018.31
7.2.50.0060.01318.57
7.2.40.0060.01218.48
7.2.30.0070.00718.47
7.2.20.0030.01318.26
7.2.10.0060.01218.45
7.2.00.0100.00718.43
7.1.330.0050.00616.61
7.1.320.0020.01416.69
7.1.310.0040.01116.75
7.1.300.0070.00516.48
7.1.290.0030.00816.57
7.1.280.0040.01116.78
7.1.270.0040.00816.62
7.1.260.0040.01116.57
7.1.250.0070.00716.90
7.1.240.0030.01217.29
7.1.230.0040.01217.45
7.1.220.0000.01417.37
7.1.210.0030.01217.29
7.1.200.0030.01317.36
7.1.190.0040.00717.31
7.1.180.0060.00617.19
7.1.170.0100.00617.35
7.1.160.0060.01217.21
7.1.150.0030.01017.42
7.1.140.0160.00317.26
7.1.130.0070.01017.40
7.1.120.0070.01017.48
7.1.110.0040.00717.20
7.1.100.0070.00717.39
7.1.90.0000.01517.57
7.1.80.0070.01017.39
7.1.70.0050.01017.14
7.1.60.0080.01218.26
7.1.50.0070.01026.10
7.1.40.0100.01017.16
7.1.30.0070.00717.33
7.1.20.0060.00617.55
7.1.10.0080.00817.41
7.1.00.0030.04319.87
7.0.330.0030.01016.68
7.0.320.0060.00616.99
7.0.310.0070.01017.02
7.0.300.0040.01116.97
7.0.290.0060.00917.14
7.0.280.0030.01017.20
7.0.270.0100.00017.21
7.0.260.0000.01617.07
7.0.250.0060.01217.01
7.0.240.0060.00617.14
7.0.230.0060.01017.06
7.0.220.0000.01217.24
7.0.210.0040.00817.12
7.0.200.0030.00816.93
7.0.190.0060.00917.14
7.0.180.0190.00016.96
7.0.170.0040.01117.09
7.0.160.0070.00717.25
7.0.150.0030.00917.10
7.0.140.0030.04219.54
7.0.130.0100.00717.14
7.0.120.0110.00316.95
7.0.110.0100.03318.47
7.0.100.0050.04618.51
7.0.90.0070.04218.47
7.0.80.0050.04118.55
7.0.70.0070.04118.43
7.0.60.0080.04318.46
7.0.50.0110.03618.69
7.0.40.0090.03917.67
7.0.30.0100.02717.63
7.0.20.0030.04517.58
7.0.10.0050.03417.56
7.0.00.0070.04217.61
5.6.400.0090.00615.96
5.6.390.0070.00715.99
5.6.380.0120.00316.08
5.6.370.0030.01015.98
5.6.360.0060.00916.05
5.6.350.0000.01416.18
5.6.340.0070.01016.12
5.6.330.0000.01116.37
5.6.320.0100.00616.06
5.6.310.0100.00615.63
5.6.300.0120.00315.71
5.6.290.0030.00615.95
5.6.280.0020.04418.34
5.6.270.0060.01016.15
5.6.260.0060.02218.37
5.6.250.0130.03418.36
5.6.240.0050.04218.27
5.6.230.0110.03518.45
5.6.220.0080.04218.41
5.6.210.0030.02718.37
5.6.200.0090.02218.54
5.6.190.0090.04218.61
5.6.180.0080.03218.54
5.6.170.0070.04418.60
5.6.160.0100.03818.60
5.6.150.0050.04318.51
5.6.140.0100.03818.54
5.6.130.0020.05218.70
5.6.120.0030.04318.70
5.6.110.0070.04418.61
5.6.100.0080.04518.62
5.6.90.0070.02618.38
5.6.80.0090.02218.21
5.6.70.0080.03318.28
5.6.60.0050.02418.26
5.6.50.0070.02218.18
5.6.40.0050.03918.18
5.6.30.0060.04318.25
5.6.20.0070.04418.27
5.6.10.0050.04618.21
5.6.00.0070.04218.23
5.5.380.0140.01518.13
5.5.370.0130.04018.33
5.5.360.0060.03918.22
5.5.350.0040.04718.17
5.5.340.0100.02318.41
5.5.330.0090.03918.33
5.5.320.0040.02718.49
5.5.310.0050.02818.39
5.5.300.0000.02918.55
5.5.290.0070.04018.41
5.5.280.0050.02518.62
5.5.270.0070.04218.52
5.5.260.0110.02518.33
5.5.250.0110.03318.34
5.5.240.0050.04618.19
5.5.230.0110.01818.08
5.5.220.0080.02218.08
5.5.210.0080.02218.09
5.5.200.0090.03818.11
5.5.190.0100.03318.16
5.5.180.0080.02018.09
5.5.170.0030.01016.00
5.5.160.0070.04218.17
5.5.150.0080.04217.92
5.5.140.0090.02418.15
5.5.130.0050.04018.05
5.5.120.0080.02818.01
5.5.110.0120.03818.03
5.5.100.0050.04518.09
5.5.90.0140.03818.03
5.5.80.0080.04218.02
5.5.70.0080.03918.05
5.5.60.0090.03317.93
5.5.50.0100.02317.98
5.5.40.0090.02318.10
5.5.30.0050.04717.95
5.5.20.0050.04017.86
5.5.10.0070.04218.13
5.5.00.0070.04518.05
5.4.450.0070.04515.99
5.4.440.0060.04616.11
5.4.430.0000.02515.94
5.4.420.0080.02016.22
5.4.410.0120.03516.14
5.4.400.0090.04215.94
5.4.390.0050.02215.77
5.4.380.0050.02615.85
5.4.370.0050.04015.88
5.4.360.0050.04315.86
5.4.350.0070.02415.90
5.4.340.0110.01615.72
5.4.330.0110.00012.78
5.4.320.0000.04616.04
5.4.310.0070.04015.94
5.4.300.0080.03215.94
5.4.290.0050.03016.00
5.4.280.0060.04115.88
5.4.270.0090.01615.74
5.4.260.0080.04115.91
5.4.250.0030.02216.00
5.4.240.0070.04215.86
5.4.230.0090.03816.00
5.4.220.0050.03616.09
5.4.210.0020.03415.98
5.4.200.0060.03915.93
5.4.190.0050.04215.92
5.4.180.0080.03515.77
5.4.170.0070.03515.85
5.4.160.0080.03315.91
5.4.150.0060.04315.77
5.4.140.0060.03614.70
5.4.130.0040.04114.68
5.4.120.0000.02814.71
5.4.110.0050.04014.73
5.4.100.0100.03714.76
5.4.90.0080.03214.63
5.4.80.0050.03514.56
5.4.70.0050.03814.67
5.4.60.0050.04014.61
5.4.50.0050.02014.56
5.4.40.0050.02814.67
5.4.30.0050.03614.57
5.4.20.0020.04314.66
5.4.10.0090.03714.53
5.4.00.0060.03814.41
5.3.290.0100.03813.92
5.3.280.0080.03813.86
5.3.270.0030.04813.86
5.3.260.0070.04013.72
5.3.250.0020.03213.88
5.3.240.0060.04113.86
5.3.230.0070.04113.96
5.3.220.0070.03913.84
5.3.210.0100.03413.83
5.3.200.0080.04013.78
5.3.190.0050.04313.84
5.3.180.0070.03313.77
5.3.170.0060.04113.97
5.3.160.0050.04413.86
5.3.150.0150.02713.86
5.3.140.0050.03013.96
5.3.130.0070.04213.91
5.3.120.0100.03113.74
5.3.110.0000.04413.79
5.3.100.0020.04513.69
5.3.90.0000.04813.59
5.3.80.0070.03913.51
5.3.70.0030.04413.50
5.3.60.0030.02213.61
5.3.50.0050.03113.49
5.3.40.0070.02113.46
5.3.30.0110.03313.63
5.3.20.0070.03413.44
5.3.10.0070.03513.25
5.3.00.0120.03213.21
5.2.170.0070.02711.84
5.2.160.0000.06711.84
5.2.150.0030.07011.84
5.2.140.0030.06011.84
5.2.130.0030.03011.84
5.2.120.0070.05311.84
5.2.110.0030.05311.84
5.2.100.0000.06311.84
5.2.90.0070.05311.84
5.2.80.0030.03011.84
5.2.70.0030.06311.84
5.2.60.0000.03311.84
5.2.50.0030.05011.84
5.2.40.0000.06311.84
5.2.30.0070.05711.84
5.2.20.0070.05711.84
5.2.10.0100.04711.84
5.2.00.0070.05311.84
5.1.60.0200.04011.84
5.1.50.0030.05311.84
5.1.40.0030.05011.84
5.1.30.0030.05311.84
5.1.20.0000.03011.84
5.1.10.0000.05711.84
5.1.00.0030.02711.84
5.0.50.0000.02011.84
5.0.40.0030.04311.84
5.0.30.0070.04311.84
5.0.20.0030.01711.84
5.0.10.0100.01011.84
5.0.00.0000.03011.84
4.4.90.0000.04011.84
4.4.80.0100.03011.84
4.4.70.0030.03011.84
4.4.60.0030.03011.84
4.4.50.0070.03011.84
4.4.40.0070.05011.84
4.4.30.0100.03011.84
4.4.20.0000.03711.84
4.4.10.0000.02311.84
4.4.00.0000.03311.84
4.3.110.0000.01711.84
4.3.100.0000.01711.84
4.3.90.0000.01711.84
4.3.80.0000.02311.84
4.3.70.0000.01711.84
4.3.60.0000.01711.84
4.3.50.0030.01311.84
4.3.40.0000.02711.84
4.3.30.0030.01311.84
4.3.20.0000.01711.84
4.3.10.0000.01711.84
4.3.00.0000.01711.84

preferences:
29.48 ms | 403 KiB | 5 Q