3v4l.org

run code in 300+ PHP versions simultaneously
<?php ob_start(); $time = microtime(1); $i = 0; while ($i++ < 10000) echo'aaaaaaa'.'aaaaaaa'.'aaaaaaa'.'aaaaaaa'; $end = microtime(1); ob_end_clean(); echo "period took ".($end-$time); echo "\n"; ob_start(); $time = microtime(1); $i = 0; while ($i++ < 10000) echo'aaaaaaa','aaaaaaa','aaaaaaa','aaaaaaa'; $end = microtime(1); ob_end_clean(); echo "comma took ".($end-$time);

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)
7.4.00.0030.02015.32
7.3.120.0130.01014.95
7.3.110.0100.01015.06
7.3.100.0060.01215.46
7.3.90.0000.01415.20
7.3.80.0090.00915.47
7.3.70.0140.00315.14
7.3.60.0030.01015.15
7.3.50.0070.01014.92
7.3.40.0040.01115.21
7.3.30.0120.00614.90
7.3.20.0030.01016.70
7.3.10.0040.01416.65
7.3.00.0040.01416.59
7.2.250.0070.01114.95
7.2.240.0030.01915.49
7.2.230.0100.00715.56
7.2.220.0030.01415.35
7.2.210.0060.00915.32
7.2.200.0060.00915.26
7.2.190.0090.00615.04
7.2.180.0040.01515.16
7.2.170.0170.00315.47
7.2.00.0030.01019.14
7.1.330.0030.01315.75
7.1.320.0100.01015.68
7.1.310.0040.01115.95
7.1.300.0000.01215.60
7.1.290.0040.01515.70
7.1.280.0000.01715.94
7.1.270.0040.00715.91
7.1.260.0000.01915.49
7.1.70.0030.01017.12
7.1.60.0100.01719.33
7.1.50.0130.01616.78
7.1.00.0030.08022.54
7.0.200.0000.01016.88
7.0.140.0070.07322.21
7.0.100.0070.08320.32
7.0.90.0130.08320.21
7.0.80.0100.07720.28
7.0.70.0030.08020.12
7.0.60.0130.07320.30
7.0.50.0130.08020.52
7.0.40.0100.06720.11
7.0.30.0130.06720.07
7.0.20.0100.07720.11
7.0.10.0000.07320.18
7.0.00.0200.04019.95
5.6.250.0100.08020.95
5.6.240.0100.08320.89
5.6.230.0100.07720.88
5.6.220.0030.08720.93
5.6.210.0030.08720.78
5.6.200.0100.08021.32
5.6.190.0170.07721.37
5.6.180.0100.07321.32
5.6.170.0030.08021.29
5.6.160.0130.03721.34
5.6.150.0000.05021.39
5.6.140.0030.06021.32
5.6.130.0030.04321.21
5.6.120.0000.04721.23
5.6.110.0000.04721.38
5.6.100.0000.08721.59
5.6.90.0000.08321.30
5.6.80.0000.05720.63
5.6.70.0030.04020.66
5.6.60.0100.06020.60
5.6.50.0000.05020.75
5.6.40.0030.04320.59
5.6.30.0000.05720.72
5.6.20.0130.03020.62
5.6.10.0070.03720.68
5.6.00.0030.04320.62
5.5.380.0170.07320.70
5.5.370.0000.09020.78
5.5.360.0170.07720.82
5.5.350.0130.07320.71
5.5.340.0130.04321.16
5.5.330.0070.08721.11
5.5.320.0030.08021.18
5.5.310.0070.05021.08
5.5.300.0030.04321.11
5.5.290.0130.04021.08
5.5.280.0030.04721.19
5.5.270.0030.04321.05
5.5.260.0030.06321.11
5.5.250.0070.06720.87
5.5.240.0100.05720.50
5.5.230.0030.07020.43
5.5.220.0030.04020.53
5.5.210.0000.04320.54
5.5.200.0070.03720.46
5.5.190.0070.04720.47
5.5.180.0000.09320.27
5.5.160.0100.07320.23
5.5.150.0070.04020.49
5.5.140.0130.06320.42
5.5.130.0030.08320.43
5.5.120.0100.08020.45
5.5.110.0030.08720.36
5.5.100.0100.04720.30
5.5.90.0030.08320.35
5.5.80.0030.06020.32
5.5.70.0070.05320.41
5.5.60.0030.08320.18
5.5.50.0070.07720.43
5.5.40.0070.06020.44
5.5.30.0130.07720.42
5.5.20.0030.08720.36
5.5.10.0130.08020.40
5.5.00.0070.08020.36
5.4.450.0030.04319.41
5.4.440.0000.04319.59
5.4.430.0030.06319.64
5.4.420.0030.08019.63
5.4.410.0030.08019.51
5.4.400.0100.06319.27
5.4.390.0070.07719.32
5.4.380.0030.04019.51
5.4.370.0000.04719.41
5.4.360.0000.04319.28
5.4.350.0030.04019.22
5.4.340.0070.07319.31
5.4.320.0030.06319.42
5.4.310.0030.04019.30
5.4.300.0000.08319.34
5.4.290.0100.06319.18
5.4.280.0100.08319.39
5.4.270.0170.06719.31
5.4.260.0070.08019.30
5.4.250.0130.07719.05
5.4.240.0000.09019.06
5.4.230.0130.07319.06
5.4.220.0070.07319.40
5.4.210.0030.05019.25
5.4.200.0130.07319.06
5.4.190.0100.07719.41
5.4.180.0000.08319.21
5.4.170.0100.07019.41
5.4.160.0100.08019.39
5.4.150.0130.07019.05
5.4.140.0200.06316.44
5.4.130.0070.07716.55
5.4.120.0130.06716.60
5.4.110.0170.07016.55
5.4.100.0000.08316.58
5.4.90.0100.06716.45
5.4.80.0030.08016.47
5.4.70.0100.06716.46
5.4.60.0070.08016.59
5.4.50.0130.06316.59
5.4.40.0130.06316.64
5.4.30.0070.08016.65
5.4.20.0100.07316.55
5.4.10.0030.08716.48
5.4.00.0100.07015.82
5.3.290.0070.03715.09
5.3.280.0100.08014.88
5.3.270.0100.08015.04
5.3.260.0070.04714.99
5.3.250.0070.07315.01
5.3.240.0170.06714.86
5.3.230.0030.08014.89
5.3.220.0170.07014.94
5.3.210.0100.07314.98
5.3.200.0100.06014.98
5.3.190.0030.06714.98
5.3.180.0170.06014.89
5.3.170.0070.07714.98
5.3.160.0130.06714.89
5.3.150.0070.07714.80
5.3.140.0130.07014.93
5.3.130.0070.08014.92
5.3.120.0200.06714.88
5.3.110.0130.07014.79
5.3.100.0100.07714.42
5.3.90.0130.07014.44
5.3.80.0030.08314.20
5.3.70.0100.06714.43
5.3.60.0030.08014.41
5.3.50.0070.07714.35
5.3.40.0030.07714.35
5.3.30.0130.06714.19
5.3.20.0000.08014.13
5.3.10.0030.07713.86
5.3.00.0070.07713.91
5.2.170.0070.06311.38
5.2.160.0100.04011.50
5.2.150.0070.06311.53
5.2.140.0100.06011.58
5.2.130.0030.06011.53
5.2.120.0030.06711.50
5.2.110.0000.04011.53
5.2.100.0170.05011.61
5.2.90.0030.06711.46
5.2.80.0100.05711.35
5.2.70.0030.06711.45
5.2.60.0070.04711.45
5.2.50.0000.06711.33
5.2.40.0000.06711.28
5.2.30.0130.05711.39
5.2.20.0030.06311.34
5.2.10.0100.05311.33
5.2.00.0070.05011.22
5.1.60.0030.03310.27
5.1.50.0000.05010.25
5.1.40.0070.05310.32
5.1.30.0030.05710.52
5.1.20.0100.05710.64
5.1.10.0030.06710.33
5.1.00.0100.05710.42
5.0.50.0000.0538.64
5.0.40.0000.0538.73
5.0.30.0070.0678.37
5.0.20.0030.0308.30
5.0.10.0030.0508.47
5.0.00.0070.0678.41
4.4.90.0000.0537.89
4.4.80.0000.0437.89
4.4.70.0130.0207.89
4.4.60.0000.0437.89
4.4.50.0070.0337.89
4.4.40.0030.0437.89
4.4.30.0000.0437.89
4.4.20.0070.0377.89
4.4.10.0000.0337.89
4.4.00.0030.0537.89
4.3.110.0000.0437.89
4.3.100.0030.0407.89
4.3.90.0000.0407.89
4.3.80.0000.0637.89
4.3.70.0100.0377.89
4.3.60.0030.0407.89
4.3.50.0030.0407.89
4.3.40.0030.0537.89
4.3.30.0000.0477.89
4.3.20.0030.0437.89
4.3.10.0000.0477.89
4.3.00.0030.0437.89

preferences:
39.39 ms | 400 KiB | 5 Q