3v4l.org

run code in 300+ PHP versions simultaneously
<?php $tmp = $array = range(1, 1000); $t = microtime(1); for ($i = 0; $i < 1e4; $i++) foreach ($array as &$value) $value++; print "by ref: ".(microtime(1) - $t)."\n"; $array = $tmp; // reset $t = microtime(1); for ($i = 0; $i < 1e4; $i++) foreach ($array as $key => $value) $array[$key]++; print "by array[key]: ".(microtime(1) - $t)."\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)
7.2.00.0030.52119.37
7.1.70.0030.53517.19
7.1.60.0030.56619.27
7.1.50.0030.49916.86
7.1.00.0070.57022.31
7.0.200.0000.57816.80
7.0.140.0030.56022.04
7.0.100.0170.57020.05
7.0.90.0900.46720.09
7.0.80.0270.57319.99
7.0.70.0170.57320.02
7.0.60.0200.57020.07
7.0.50.0070.58320.41
7.0.40.0000.47719.95
7.0.30.0070.45320.18
7.0.20.0100.58020.00
7.0.10.0100.48020.00
7.0.00.0100.46320.07
5.6.280.0031.82021.07
5.6.250.0101.21020.90
5.6.240.0071.23020.89
5.6.230.0031.15320.92
5.6.220.1501.17321.02
5.6.210.0101.29720.75
5.6.200.0071.25721.31
5.6.190.0131.25721.25
5.6.180.0001.03321.32
5.6.170.0071.13721.39
5.6.160.2831.16721.37
5.6.150.0101.04721.30
5.6.140.0031.22321.22
5.6.130.0031.21021.30
5.6.120.0071.12721.41
5.6.110.0071.14021.35
5.6.100.0071.06721.20
5.6.90.0071.11321.20
5.6.80.0131.28720.68
5.6.70.0071.09020.59
5.6.60.0071.28320.69
5.6.50.0131.28720.68
5.6.40.0101.31720.77
5.6.30.0101.23720.60
5.6.20.0031.03020.84
5.6.10.0071.10320.59
5.6.00.0031.03320.56
5.5.380.0031.11320.71
5.5.370.0031.29020.74
5.5.360.0071.25020.72
5.5.350.0031.19720.70
5.5.340.0131.25321.20
5.5.330.0031.10321.15
5.5.320.0031.05721.05
5.5.310.0071.31721.08
5.5.300.0071.13321.16
5.5.290.3071.18021.18
5.5.280.0071.03721.20
5.5.270.2801.18321.07
5.5.260.0101.15721.15
5.5.250.0071.15020.90
5.5.240.0131.23720.44
5.5.230.0101.30720.55
5.5.220.0171.18720.52
5.5.210.0031.25720.56
5.5.200.2071.22020.42
5.5.190.0101.25320.56
5.5.180.0001.15720.47
5.5.160.0171.03020.52
5.5.150.0001.23720.44
5.5.140.0001.22720.52
5.5.130.0071.26320.55
5.5.120.0101.24320.52
5.5.110.0101.14020.50
5.5.100.0071.15720.30
5.5.90.0671.16020.23
5.5.80.0171.23720.35
5.5.70.0001.29320.29
5.5.60.0101.38020.42
5.5.50.0101.29020.42
5.5.40.0031.29720.50
5.5.30.0071.24020.38
5.5.20.0071.24320.34
5.5.10.0071.23720.32
5.5.00.0131.27720.31
5.4.450.0101.33019.59
5.4.440.0071.24019.66
5.4.430.0131.28719.59
5.4.420.0031.15719.66
5.4.410.0031.27019.56
5.4.400.0101.28019.40
5.4.390.0001.14019.21
5.4.380.0071.31019.27
5.4.370.0071.28319.16
5.4.360.0101.32019.36
5.4.350.2101.13719.17
5.4.340.0001.07719.04
5.4.320.0131.24719.31
5.4.310.0131.27319.18
5.4.300.0071.28019.14
5.4.290.0031.18719.30
5.4.280.0071.16719.18
5.4.270.0031.16019.17
5.4.260.0101.21719.17
5.4.250.0001.31319.21
5.4.240.0031.28019.26
5.4.230.0131.22719.11
5.4.220.0031.11319.17
5.4.210.0031.29019.25
5.4.200.0031.26319.26
5.4.190.0031.20019.25
5.4.180.0101.28319.16
5.4.170.0031.03719.00
5.4.160.0071.28019.20
5.4.150.0031.28019.20
5.4.140.0101.33016.47
5.4.130.0031.30316.54
5.4.120.0031.05016.59
5.4.110.0101.27716.47
5.4.100.0101.30316.54
5.4.90.0101.17316.61
5.4.80.0031.24016.50
5.4.70.0031.39316.46
5.4.60.0071.25016.68
5.4.50.0101.22716.58
5.4.40.0101.20016.46
5.4.30.0371.31716.53
5.4.20.0031.05016.53
5.4.10.0101.29016.64
5.4.00.0071.14316.05
5.3.290.0071.47315.05
5.3.280.0071.27314.95
5.3.270.0071.46015.00
5.3.260.0071.39014.88
5.3.250.0071.23715.02
5.3.240.0231.24715.00
5.3.230.0101.37014.96
5.3.220.0001.21714.94
5.3.210.1771.35314.97
5.3.200.0031.43714.96
5.3.190.0031.29714.94
5.3.180.0071.43314.88
5.3.170.0031.38014.97
5.3.160.0001.45714.91
5.3.150.0201.45714.97
5.3.140.0101.32714.83
5.3.130.0031.37014.91
5.3.120.0031.33014.92
5.3.110.0031.37314.87
5.3.100.0001.21014.27
5.3.90.0031.32014.42
5.3.80.0031.30014.41
5.3.70.0131.39014.18
5.3.60.0031.25714.38
5.3.50.0001.32314.21
5.3.40.0101.35314.36
5.3.30.0071.32314.28
5.3.20.0031.31314.01
5.3.10.0131.41714.05
5.3.00.0071.22314.08
5.2.170.0031.63011.39
5.2.160.0031.59711.57
5.2.150.0071.63311.35
5.2.140.0031.70311.49
5.2.130.0001.62011.45
5.2.120.0001.48011.33
5.2.110.0001.56311.28
5.2.100.0071.47311.54
5.2.90.0031.53311.49
5.2.80.0001.48711.32
5.2.70.0071.52011.53
5.2.60.0001.58311.23
5.2.50.0071.58311.35
5.2.40.0071.62311.38
5.2.30.0001.61311.35
5.2.20.1531.57711.19
5.2.10.0001.56311.27
5.2.00.1871.45711.27
5.1.60.0001.63010.61
5.1.50.0071.67710.59
5.1.40.0001.85010.52
5.1.30.0001.66010.97
5.1.20.0071.77310.88
5.1.10.0101.80310.56
5.1.00.0032.05710.42
5.0.50.0002.5008.96
5.0.40.0102.4408.56
5.0.30.0032.4978.42
5.0.20.0132.4878.52
5.0.10.0072.4938.57
5.0.00.0032.4978.34
4.4.90.0030.0338.12
4.4.80.0030.0308.12
4.4.70.0030.0208.12
4.4.60.0030.0338.12
4.4.50.0070.0278.12
4.4.40.0000.0538.12
4.4.30.0000.0338.12
4.4.20.0000.0178.12
4.4.10.0030.0208.12
4.4.00.0000.0478.12
4.3.110.0000.0378.12
4.3.100.0030.0178.12
4.3.90.0000.0378.12
4.3.80.0070.0508.12
4.3.70.0030.0208.12
4.3.60.0070.0308.12
4.3.50.0030.0378.12
4.3.40.0000.0378.12
4.3.30.0000.0338.12
4.3.20.0030.0338.12
4.3.10.0000.0378.12
4.3.00.0030.0278.12

preferences:
36.47 ms | 401 KiB | 5 Q