3v4l.org

run code in 300+ PHP versions simultaneously
<?php { // The n-th prime we're aiming for $n = 444; // The first prime is the only even one $primes = array(1 => 2); // Loop counters $c = 1; $p = 3; $cnt =0; while (true) { // Check if $p is prime $prime = true; $sqrt = sqrt($p); for ($i = 1; $i < $c && $primes[$i] <= $sqrt; $i++) { if ($p % $primes[$i] == 0) { $prime = false; break; } } // Record $p if prime if ($prime) { $primes[++$c] = $p; $hexchr = base_convert($p, 10, 16); if (strpos($hexchr,'beef') !== false) { $beefprime[++$cnt]=$p; echo "$p HEX IS $hexchr\n"; } if ($cnt == $n) { break; } } // Next $p to check $p += 2; } echo "444th prime number is $beefprime[$n]"; }

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)
8.3.70.0131.99122.37
8.3.60.0201.98121.50
8.3.50.0321.97323.69
8.3.40.0131.99123.68
8.3.30.0101.99323.57
8.3.20.0101.99326.39
8.3.10.0071.99729.70
8.3.00.0031.99925.85
8.2.190.0231.98121.38
8.2.180.0071.99724.42
8.2.170.0131.99024.11
8.2.160.0131.98925.38
8.2.150.0071.99624.88
8.2.140.0071.99828.12
8.2.130.0131.98826.16
8.2.120.0031.99824.09
8.2.110.0032.00023.50
8.2.100.0131.99423.03
8.2.90.0071.99624.25
8.2.80.0102.00322.50
8.2.70.0071.99122.63
8.2.60.0071.99423.16
8.2.50.0031.99120.75
8.2.40.0071.99624.52
8.2.30.0032.00023.82
8.2.20.0071.99622.90
8.2.10.0101.99423.17
8.2.00.0071.99523.20
8.1.280.0201.98525.92
8.1.270.0032.00039.86
8.1.260.0101.98935.39
8.1.250.0301.97237.97
8.1.240.0101.99228.43
8.1.230.0271.97634.55
8.1.220.0002.00324.97
8.1.210.0101.99025.20
8.1.200.0101.99725.74
8.1.190.0131.99025.35
8.1.180.0071.99725.79
8.1.170.0101.99335.67
8.1.160.0031.99831.04
8.1.150.0031.99926.60
8.1.140.0071.99525.44
8.1.130.0071.99425.71
8.1.120.0032.00024.90
8.1.110.0071.99725.58
8.1.100.0071.99525.39
8.1.90.0032.00025.30
8.1.80.0101.99334.48
8.1.70.0101.99325.22
8.1.60.0101.99225.31
8.1.50.0131.98925.33
8.1.40.0031.99925.25
8.1.30.0101.98924.61
8.1.20.0032.00025.36
8.1.10.0032.00025.22
8.1.00.0131.99125.11
8.0.300.0031.99925.72
8.0.290.0031.99924.65
8.0.280.0071.99726.69
8.0.270.0071.99625.56
8.0.260.0131.98925.27
8.0.250.0071.99725.03
8.0.240.0071.99525.13
8.0.230.0101.99325.23
8.0.220.0071.99524.93
8.0.210.0071.99625.21
8.0.200.0031.99925.11
8.0.190.0061.99424.64
8.0.180.0032.00024.65
8.0.170.0032.00324.59
8.0.160.0201.98224.59
8.0.150.0101.99624.14
8.0.140.0032.00024.56
8.0.130.0131.99221.00
8.0.120.0002.00424.58
8.0.110.0071.99824.40
8.0.100.0201.98124.29
8.0.90.0131.99024.60
8.0.80.0191.98122.71
8.0.70.0131.99124.13
8.0.60.0101.99324.52
8.0.50.0131.98824.45
8.0.30.0351.96323.87
8.0.20.0211.98122.82
8.0.10.0071.99824.63
8.0.00.0281.97421.53
7.4.330.0101.99321.12
7.4.320.0101.99223.83
7.4.300.0071.99724.19
7.4.290.0032.00023.68
7.4.280.0171.98523.59
7.4.270.0101.99223.64
7.4.260.0131.99123.43
7.4.250.0031.99923.57
7.4.240.0022.00123.71
7.4.230.0032.00123.75
7.4.220.0381.96221.47
7.4.210.0271.97621.75
7.4.200.0101.99223.71
7.4.160.0201.98322.16
7.4.150.0361.96321.96
7.4.140.0221.99621.36
7.4.130.0231.98521.73
7.4.120.0231.97222.00
7.4.110.0302.43822.94
7.4.100.0332.43822.98
7.4.90.0262.41522.83
7.4.80.0392.39722.36
7.4.70.0202.42722.80
7.4.60.0302.42522.85
7.4.50.0132.48533.31
7.4.40.0432.42122.88
7.4.30.0232.33622.36
7.4.00.0072.48221.48
7.3.330.0331.95319.21
7.3.320.0032.00020.32
7.3.310.0031.99823.11
7.3.300.0131.98623.36
7.3.290.0151.98421.54
7.3.280.0211.98021.54
7.3.270.0161.98121.73
7.3.260.0331.97321.51
7.3.250.0271.97421.70
7.3.240.0131.99421.63
7.3.230.0302.39421.50
7.3.210.0392.29622.37
7.3.200.0292.40021.83
7.3.190.0362.44022.48
7.3.180.0202.45322.63
7.3.170.0392.43222.23
7.3.160.0162.44922.07
7.2.330.0692.33222.73
7.2.320.0271.33821.63
7.2.310.0202.44122.56
7.2.300.0302.45322.58
7.2.290.0202.44022.34
7.2.00.0132.48625.63
7.1.100.2601.30921.38
7.1.70.0072.49525.23
7.1.60.0072.49525.56
7.1.50.0132.48825.05
7.1.00.0072.49330.25
7.0.200.1502.35122.57
7.0.60.0102.49027.29
7.0.50.0202.48025.12
7.0.40.0102.49026.28
7.0.30.0372.46326.19
7.0.20.0372.45026.02
7.0.10.0132.48726.30
7.0.00.0132.48726.26
5.6.280.0072.49340.26
5.6.210.0172.48338.48
5.6.200.0232.41735.25
5.6.190.0072.48738.49
5.6.180.6831.80734.69
5.6.170.0272.47338.18
5.6.160.0032.49738.34
5.6.150.0032.49737.45
5.6.140.0102.49035.76
5.6.130.0132.48735.84
5.6.120.0072.49338.18
5.6.110.0172.48338.93
5.6.100.0102.49038.74
5.6.90.0372.46337.63
5.6.80.0072.49338.65
5.6.70.4402.06037.90
5.5.350.0132.48738.50
5.5.340.0172.48335.57
5.5.330.0332.46737.83
5.5.320.3072.19336.61
5.5.310.0172.48337.88
5.5.300.0102.49035.41
5.5.290.0072.49335.97
5.5.280.0132.48737.83
5.5.270.0102.47738.55
5.5.260.0072.49338.75
5.5.250.0102.49037.88
5.5.240.0302.47040.07
5.4.450.0432.41731.68
5.4.440.0302.46031.60
5.4.430.0332.45731.16
5.4.420.0472.41731.62
5.4.410.1072.37030.41
5.4.400.0902.40731.61
5.4.390.0772.37731.36
5.4.380.0702.42331.63
5.4.370.1072.36731.27
5.4.360.0772.40730.21
5.4.350.1202.35330.27
5.4.340.0832.40331.23
5.4.320.1032.38330.48
5.4.310.0932.39031.29
5.4.300.1072.35730.82
5.4.290.1302.35030.75
5.4.280.0732.39031.41
5.4.270.0772.38731.18
5.4.260.0772.37729.23
5.4.250.0832.40031.41
5.4.240.0802.40031.64
5.4.230.0702.42330.62
5.4.220.0832.41330.54
5.4.210.1002.33731.13
5.4.200.0232.41331.72
5.4.190.0302.46032.09
5.4.180.0302.44730.94
5.4.170.0772.37729.88
5.4.160.0302.46331.93
5.4.150.0272.47031.46
5.4.140.0172.48029.06
5.4.130.0472.45028.18
5.4.120.0702.42729.07
5.4.110.0672.43029.29
5.4.100.0572.44027.73
5.4.90.0772.41728.95
5.4.80.0702.42728.54
5.4.70.0132.48334.07
5.4.60.0332.46334.20
5.4.50.0072.49034.21
5.4.40.0302.46733.97
5.4.30.0302.46734.04
5.4.20.0402.45734.09

preferences:
57.94 ms | 401 KiB | 5 Q