3v4l.org

run code in 300+ PHP versions simultaneously
<?php $value = base64_encode(md5('')); $start = microtime(true); for ($i = 0; $i < 10000000; ++$i) { $soFar = ''; $result = []; foreach (str_split($value) as $char) { $soFar .= $char; $result[] = $soFar; } } $end = microtime(true); echo $i/($end - $start), ' op/s'; var_dump($result);

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)
7.1.70.0002.50116.97
7.1.60.0102.49119.82
7.1.50.2762.22417.27
7.1.00.0072.49322.41
7.0.200.0032.49816.88
7.0.140.0032.49722.12
7.0.60.0172.48319.93
7.0.50.0072.49317.77
7.0.40.0002.50019.87
7.0.30.0432.45719.95
7.0.20.0232.47719.98
7.0.10.0002.50019.73
7.0.00.0072.49319.88
5.6.280.0032.49721.13
5.6.210.0102.47720.73
5.6.200.0072.49318.17
5.6.190.0032.49720.25
5.6.180.0532.44720.40
5.6.170.0302.47020.27
5.6.160.0032.49720.36
5.6.150.0032.49718.13
5.6.140.0032.49718.16
5.6.130.0032.49718.11
5.6.120.0032.49720.95
5.6.110.0102.49021.02
5.6.100.0132.48721.14
5.6.90.0132.48721.09
5.6.80.0172.48320.48
5.5.350.0302.36020.43
5.5.340.0202.41720.94
5.5.330.0232.36320.94
5.5.320.0132.42720.93
5.5.310.0132.40320.90
5.5.300.0232.39320.97
5.5.290.0332.43020.86
5.5.280.0331.92020.84
5.5.270.0271.98720.84
5.5.260.0231.74320.69
5.5.250.0302.40720.75
5.5.240.0232.42020.26
5.4.450.0172.43719.46
5.4.440.0132.24319.40
5.4.430.0132.04319.15
5.4.420.0331.98719.37
5.4.410.0302.14018.99
5.4.400.0232.38319.00
5.4.390.0032.44719.06
5.4.380.0172.44019.00
5.4.370.0272.40319.11
5.4.360.0132.43719.04
5.4.350.0232.40718.97
5.4.340.0372.41319.00
5.4.320.0202.39319.02
5.4.310.0272.39018.97
5.4.300.0132.48019.01
5.4.290.0502.34018.96
5.4.280.0402.37719.16
5.4.270.0202.44719.03
5.4.260.0102.27018.96
5.4.250.0401.92019.10
5.4.240.0231.94719.14
5.4.230.0201.96019.15
5.4.220.0471.98018.99
5.4.210.0172.02718.83
5.4.200.0102.34018.98
5.4.190.0272.41018.95
5.4.180.0132.43319.12
5.4.170.0232.36719.09
5.4.160.0232.44718.97
5.4.150.0372.39019.03
5.4.140.0202.40016.42
5.4.130.0302.37016.39
5.4.120.0272.40716.41
5.4.110.0202.41716.44
5.4.100.0402.33716.36
5.4.90.0232.39316.44
5.4.80.0202.41716.17
5.4.70.0202.42716.30
5.4.60.0272.39716.18
5.4.50.0302.41316.43
5.4.40.0232.42716.18
5.4.30.0132.43016.18
5.4.20.0132.42716.16
5.4.10.0202.43316.19
5.4.00.0132.41015.81
5.3.290.0060.03812.80
5.3.280.0070.07014.48
5.3.270.0230.06714.46
5.3.260.0170.06714.63
5.3.250.0030.05714.46
5.3.240.0070.05714.38
5.3.230.0070.05014.45
5.3.220.0000.05714.46
5.3.210.0030.05714.59
5.3.200.0070.05014.42
5.3.190.0000.05714.59
5.3.180.0100.04714.56
5.3.170.0100.04314.45
5.3.160.0030.05314.58
5.3.150.0030.05714.42
5.3.140.0070.05014.65
5.3.130.0030.05714.51
5.3.120.0100.05014.54
5.3.110.0100.07014.46
5.3.100.0070.06713.74
5.3.90.0100.04714.02
5.3.80.0100.04313.72
5.3.70.0100.04313.86

preferences:
30.73 ms | 400 KiB | 5 Q