3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $s = "R&ouml;mer"; $rest = "R&ouml;mer"; $result = "R&ouml;mer"; do { $rest = stristr($rest,$s); echo "rest: $rest\n"; $replace = substr($rest,0,strlen($s)); echo "replace: $replace\n"; $result = str_replace($replace,"<span class='textHighlight'>{$replace}</span>",$result); echo "result: $result\n"; $rest = substr($rest,strlen($s)); echo "rest': $rest\n"; } while ($rest !== false); echo $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).
Note: hhvm uses a JIT which only kicks in after a few runs. Since we run scripts only once, hhvm always runs slower.

VersionSystem time (s)User time (s)Memory (MiB)
7.2.80.0030.01016.41
7.2.60.0040.00816.57
7.2.00.0030.01019.47
7.1.200.0070.00715.87
7.1.100.0040.00717.76
7.1.70.0080.00317.10
7.1.60.0070.01719.46
7.1.50.0030.01716.69
7.1.00.0030.07722.37
7.0.200.0060.00316.78
7.0.140.0030.07322.18
7.0.100.0070.07719.97
7.0.90.0070.08320.00
7.0.80.0200.07020.03
7.0.70.0130.07720.05
7.0.60.0100.08719.95
7.0.50.0070.07720.41
7.0.40.0070.08020.08
7.0.30.0130.05320.18
7.0.20.0100.07720.15
7.0.10.0000.08720.10
7.0.00.0200.07720.13
5.6.280.0070.07021.10
5.6.250.0100.04720.75
5.6.240.0070.07320.69
5.6.230.0000.06020.69
5.6.220.0270.04020.49
5.6.210.0070.08020.52
5.6.200.0100.07021.07
5.6.190.0130.07321.02
5.6.180.0000.08321.02
5.6.170.0030.08721.02
5.6.160.0170.06721.11
5.6.150.0100.07720.94
5.6.140.0130.08021.13
5.6.130.0070.08021.06
5.6.120.0100.08321.08
5.6.110.0070.08321.10
5.6.100.0030.08721.00
5.6.90.0070.08721.00
5.6.80.0070.07320.43
5.6.70.0000.08320.42
5.6.60.0070.08020.38
5.6.50.0270.05320.56
5.6.40.0070.05720.27
5.6.30.0100.07720.38
5.6.20.0100.04720.52
5.6.10.0130.06320.43
5.6.00.0070.08020.39
5.5.380.0070.08020.57
5.5.370.0070.08020.51
5.5.360.0070.07720.36
5.5.350.0100.08320.37
5.5.340.0170.04320.64
5.5.330.0130.04320.73
5.5.320.0130.07320.83
5.5.310.0100.07320.73
5.5.300.0000.09320.72
5.5.290.0100.08320.83
5.5.280.0130.08020.89
5.5.270.0130.06020.75
5.5.260.0000.08720.90
5.5.250.0030.09020.74
5.5.240.0200.06720.26
5.5.230.0070.05320.21
5.5.220.0100.07720.29
5.5.210.0070.04020.17
5.5.200.0130.07720.13
5.5.190.0100.07720.15
5.5.180.0070.08020.09
5.5.160.0100.05320.26
5.5.150.0030.07320.10
5.5.140.0100.04320.21
5.5.130.0200.06720.23
5.5.120.0130.07020.27
5.5.110.0070.08020.25
5.5.100.0200.07320.05
5.5.90.0070.07020.11
5.5.80.0170.07020.09
5.5.70.0130.04320.03
5.5.60.0130.07020.14
5.5.50.0130.06720.09
5.5.40.0100.08320.14
5.5.30.0100.06720.05
5.5.20.0070.04020.13
5.5.10.0070.04719.97
5.5.00.0070.07320.01
5.4.450.0070.08319.56
5.4.440.0100.07719.36
5.4.430.0070.06019.43
5.4.420.0000.08719.46
5.4.410.0170.07319.27
5.4.400.0200.07019.13
5.4.390.0070.06319.03
5.4.380.0230.04319.03
5.4.370.0130.07019.07
5.4.360.0100.06318.96
5.4.350.0130.05319.02
5.4.340.0130.05718.82
5.4.320.0030.08318.79
5.4.310.0070.07319.03
5.4.300.0100.06319.11
5.4.290.0100.04318.95
5.4.280.0070.07719.03
5.4.270.0100.04019.14
5.4.260.0100.06319.07
5.4.250.0170.06319.07
5.4.240.0070.04319.05
5.4.230.0030.06319.03
5.4.220.0130.07318.75
5.4.210.0100.04319.02
5.4.200.0100.06318.89
5.4.190.0070.06719.03
5.4.180.0070.07719.09
5.4.170.0000.08319.09
5.4.160.0100.07018.77
5.4.150.0070.07718.92
5.4.140.0100.06316.29
5.4.130.0070.07016.34
5.4.120.0070.06016.37
5.4.110.0230.05716.50
5.4.100.0070.06716.41
5.4.90.0170.05716.27
5.4.80.0100.03716.48
5.4.70.0070.07016.19
5.4.60.0000.07316.32
5.4.50.0070.05716.25
5.4.40.0070.06716.29
5.4.30.0030.08016.20
5.4.20.0070.07016.40
5.4.10.0070.04716.28
5.4.00.0030.04015.76
5.3.290.0100.07014.57
5.3.280.0100.07314.45
5.3.270.0000.07314.62
5.3.260.0100.04314.46
5.3.250.0030.06014.57
5.3.240.0070.04314.54
5.3.230.0130.06314.59
5.3.220.0030.04314.50
5.3.210.0000.08314.42
5.3.200.0100.07014.55
5.3.190.0030.07314.59
5.3.180.0070.07314.42
5.3.170.0100.06714.52
5.3.160.0130.07014.55
5.3.150.0070.07314.52
5.3.140.0030.07314.56
5.3.130.0100.07014.50
5.3.120.0100.07314.55
5.3.110.0000.05014.54
5.3.100.0070.07013.95
5.3.90.0070.07313.84
5.3.80.0030.06314.00
5.3.70.0070.07714.01
5.3.60.0030.05313.86
5.3.50.0030.07713.93
5.3.40.0100.07013.88
5.3.30.0130.06313.84
5.3.20.0070.06713.68
5.3.10.0100.07013.57
5.3.00.0130.05013.59
5.2.170.0030.03711.17
5.2.160.0070.06011.18
5.2.150.0000.04011.13
5.2.140.0030.06311.19
5.2.130.0030.04311.11
5.2.120.0070.05710.89
5.2.110.0030.04311.09
5.2.100.0070.06011.10
5.2.90.0030.06310.96
5.2.80.0070.06011.05
5.2.70.0130.05711.09
5.2.60.0070.06011.09
5.2.50.0070.05711.01
5.2.40.0070.06011.04
5.2.30.0070.05710.84
5.2.20.0030.05710.83
5.2.10.0100.05310.78
5.2.00.0070.04010.75
5.1.60.0070.05010.07
5.1.50.0030.04310.07
5.1.40.0070.04310.07
5.1.30.0000.06010.31
5.1.20.0000.06010.39
5.1.10.0130.04710.12
5.1.00.0100.04310.13
5.0.50.0070.03710.07
5.0.40.0030.04310.07
5.0.30.0100.03010.07
5.0.20.0100.04010.07
5.0.10.0100.03710.07
5.0.00.0100.04010.07
4.4.90.0000.04010.07
4.4.80.0030.03310.07
4.4.70.0000.04010.07
4.4.60.0000.03710.07
4.4.50.0100.02310.07
4.4.40.0000.05310.07
4.4.30.0030.03310.07
4.4.20.0000.02310.07
4.4.10.0070.01710.07
4.4.00.0070.05010.07
4.3.110.0070.02710.07
4.3.100.0000.03310.07
4.3.90.0100.02710.07
4.3.80.0030.05010.07
4.3.70.0000.03310.07
4.3.60.0000.02710.07
4.3.50.0000.02310.07
4.3.40.0100.04710.07
4.3.30.0000.03310.07
4.3.20.0000.03010.07
4.3.10.0030.03310.07
4.3.00.0030.03010.07