3v4l.org

run code in 300+ PHP versions simultaneously
<?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); $rest = substr($rest,strlen($s)); } while ($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).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0190.00318.02
8.3.50.0260.01221.14
8.3.40.0230.00418.54
8.3.30.0180.00718.71
8.3.20.0110.01818.77
8.3.10.0120.00620.50
8.3.00.0200.02023.53
8.2.180.0110.01116.50
8.2.170.0190.01922.96
8.2.160.0200.00720.23
8.2.150.0170.01324.18
8.2.140.0100.00024.66
8.2.130.0360.00726.16
8.2.120.0070.00419.36
8.2.110.0070.00720.94
8.2.100.0190.00317.84
8.2.90.0080.00819.09
8.2.80.0000.00917.97
8.2.70.0120.00017.38
8.2.60.0040.00717.80
8.2.50.0030.00618.07
8.2.40.0090.00018.22
8.2.30.0060.00319.98
8.2.20.0000.01017.62
8.2.10.0070.00417.76
8.2.00.0030.00617.84
8.1.280.0230.00325.92
8.1.270.0140.01123.99
8.1.260.0290.01526.35
8.1.250.0120.00428.09
8.1.240.0110.00521.87
8.1.230.0060.01220.99
8.1.220.0100.00318.77
8.1.210.0090.00318.97
8.1.200.0130.00317.36
8.1.190.0070.00317.43
8.1.180.0060.00618.10
8.1.170.0070.00718.45
8.1.160.0040.00718.82
8.1.150.0000.00918.71
8.1.140.0110.00017.48
8.1.130.0050.00517.91
8.1.120.0060.00317.44
8.1.110.0030.00617.48
8.1.100.0000.00917.34
8.1.90.0000.00917.45
8.1.80.0000.01117.48
8.1.70.0030.00617.35
8.1.60.0100.00017.62
8.1.50.0070.00717.40
8.1.40.0030.00617.50
8.1.30.0130.00317.49
8.1.20.0030.00617.66
8.1.10.0030.00717.59
8.1.00.0060.00917.58
8.0.300.0090.00019.95
8.0.290.0060.00616.63
8.0.280.0120.00018.36
8.0.270.0040.00717.25
8.0.260.0110.00016.82
8.0.250.0120.00016.91
8.0.240.0080.00616.91
8.0.230.0090.00016.76
8.0.220.0030.01316.86
8.0.210.0000.01216.73
8.0.200.0090.00016.80
8.0.190.0030.00616.76
8.0.180.0040.00716.90
8.0.170.0000.01216.80
8.0.160.0060.01216.75
8.0.150.0060.00316.79
8.0.140.0120.00316.69
8.0.130.0090.00013.33
8.0.120.0070.00316.71
8.0.110.0080.00316.74
8.0.100.0050.00516.89
8.0.90.0070.00316.70
8.0.80.0100.02316.80
8.0.70.0030.00616.80
8.0.60.0000.01016.66
8.0.50.0040.00716.82
8.0.30.0340.02417.00
8.0.20.0370.02917.40
8.0.10.0060.00316.79
8.0.00.0340.03716.60
7.4.330.0000.00514.84
7.4.320.0070.00016.63
7.4.300.0030.00316.44
7.4.290.0030.00516.46
7.4.280.0040.00416.63
7.4.270.0030.00316.52
7.4.260.0000.00513.28
7.4.250.0050.00316.54
7.4.240.0000.00716.43
7.4.230.0050.00216.52
7.4.220.0090.00616.42
7.4.210.0080.01016.57
7.4.200.0070.00016.40
7.4.190.0080.00016.70
7.4.160.0090.00916.49
7.4.150.0090.00917.40
7.4.140.0110.01117.86
7.4.130.0100.01016.47
7.4.120.0100.00616.56
7.4.110.0120.00616.54
7.4.100.0000.01716.36
7.4.90.0030.01416.70
7.4.80.0100.01019.37
7.4.70.0120.00416.40
7.4.60.0040.01216.29
7.4.50.0030.00516.30
7.4.40.0000.01122.27
7.4.30.0110.01216.61
7.4.00.0110.00414.95
7.3.330.0000.00513.08
7.3.320.0000.00513.00
7.3.310.0070.00016.41
7.3.300.0070.00016.27
7.3.290.0030.01316.30
7.3.280.0040.01216.30
7.3.270.0100.00617.40
7.3.260.0080.00918.24
7.3.250.0110.00916.32
7.3.240.0070.01016.48
7.3.230.0080.01016.47
7.3.210.0140.00316.28
7.3.200.0140.00419.39
7.3.190.0110.01116.57
7.3.180.0090.00616.62
7.3.170.0060.01016.51
7.3.160.0040.01316.36
7.3.120.0030.01014.83
7.2.330.0150.00316.52
7.2.320.0100.00716.58
7.2.310.0140.01116.54
7.2.300.0090.01616.59
7.2.290.0090.00616.57
7.2.60.0120.00016.63
7.2.50.0000.01016.91
7.1.200.0180.00715.82
7.1.70.0000.00817.21
7.1.60.0040.01117.32
7.1.50.0060.01617.11
7.1.00.0030.06722.33
7.0.200.0060.00916.93
7.0.140.0000.07721.98
7.0.70.0030.04321.73
7.0.60.0030.04021.68
7.0.50.0000.04722.12
7.0.40.0100.04020.00
7.0.30.0030.07319.96
7.0.20.0030.08320.09
7.0.10.0030.08020.14
7.0.00.0000.09020.13
5.6.280.0100.06721.09
5.6.220.0030.03020.52
5.6.210.0000.04320.49
5.6.200.0070.08720.95
5.6.190.0030.08321.11
5.6.180.0070.07721.04
5.6.170.0100.08020.89
5.6.160.0070.07721.08
5.6.150.0000.09021.08
5.6.140.0030.08321.04
5.6.130.0070.06321.04
5.6.120.0070.07721.01
5.6.110.0000.07721.07
5.6.100.0070.08020.94
5.6.90.0000.07321.11
5.6.80.0030.08320.35
5.6.70.0030.08320.33
5.6.60.0000.08020.41
5.6.50.0000.05020.41
5.6.40.0000.08320.40
5.6.30.0070.04320.45
5.6.20.0030.07320.37
5.6.10.0100.07720.43
5.6.00.0000.07020.45
5.5.360.0000.03720.53
5.5.350.0000.04020.40
5.5.340.0070.05720.88
5.5.330.0070.06020.88
5.5.320.0070.08020.89
5.5.310.0030.05020.79
5.5.300.0130.07320.87
5.5.290.0000.09320.82
5.5.280.0030.04720.80
5.5.270.0170.08320.86
5.5.260.0070.07720.86
5.5.250.0000.08020.73
5.5.240.0070.07320.32
5.5.230.0000.07720.21
5.5.220.0000.08320.26
5.5.210.0000.08020.13
5.5.200.0070.07719.99
5.5.190.0030.06320.20
5.5.180.0070.05320.14
5.5.160.0030.07720.20
5.5.150.0030.08720.22
5.5.140.0030.08020.25
5.5.130.0070.07020.21
5.5.120.0100.07320.20
5.5.110.0000.07720.13
5.5.100.0030.07720.17
5.5.90.0100.07320.05
5.5.80.0070.07319.97
5.5.70.0070.07720.08
5.5.60.0000.08020.05
5.5.50.0070.05720.15
5.5.40.0070.05720.10
5.5.30.0130.06720.14
5.5.20.0000.08019.95
5.5.10.0030.08020.06
5.5.00.0000.05320.12
5.4.450.0000.07019.42
5.4.440.0100.07719.36
5.4.430.0100.06019.35
5.4.420.0070.05319.23
5.4.410.0070.06719.31
5.4.400.0130.06719.15
5.4.390.0030.08319.06
5.4.380.0100.07018.88
5.4.370.0070.07019.05
5.4.360.0030.07718.81
5.4.350.0030.05319.17
5.4.340.0030.06319.08
5.4.320.0070.07319.02
5.4.310.0100.07319.09
5.4.300.0130.06719.03
5.4.290.0000.04718.89
5.4.280.0000.04318.80
5.4.270.0100.07319.02
5.4.260.0070.07718.98
5.4.250.0100.07019.09
5.4.240.0100.07019.09
5.4.230.0000.06319.11
5.4.220.0070.07318.97
5.4.210.0000.06318.96
5.4.200.0000.08319.13
5.4.190.0070.05319.04
5.4.180.0130.07019.07
5.4.170.0000.06018.77
5.4.160.0070.07718.92
5.4.150.0030.07718.88
5.4.140.0000.06316.33
5.4.130.0070.07016.34
5.4.120.0030.04016.27
5.4.110.0070.06316.20
5.4.100.0030.07716.27
5.4.90.0070.06716.41
5.4.80.0030.06716.32
5.4.70.0030.05316.20
5.4.60.0100.03316.39
5.4.50.0000.07716.33
5.4.40.0130.06016.35
5.4.30.0100.06716.29
5.4.20.0000.04716.39
5.4.10.0100.07016.37
5.4.00.0030.07315.77
5.3.290.0070.05314.55
5.3.280.0130.07314.59
5.3.270.0000.06014.56
5.3.260.0000.07314.58
5.3.250.0030.05714.43
5.3.240.0070.06314.61
5.3.230.0030.06314.57
5.3.220.0100.05714.52
5.3.210.0070.07014.45
5.3.200.0000.05714.51
5.3.190.0030.07314.55
5.3.180.0000.07014.43
5.3.170.0070.04014.55
5.3.160.0000.08014.55
5.3.150.0030.07714.51
5.3.140.0030.07714.55
5.3.130.0100.06014.38
5.3.120.0030.07714.37
5.3.110.0000.07714.55
5.3.100.0030.07314.02
5.3.90.0030.07013.88
5.3.80.0070.07313.79
5.3.70.0100.06714.00
5.3.60.0000.07013.98
5.3.50.0000.07313.85
5.3.40.0030.06713.95
5.3.30.0000.05313.81
5.3.20.0030.07013.63
5.3.10.0030.07313.41
5.3.00.0000.07013.59
5.2.170.0070.06312.15
5.2.160.0030.06012.15
5.2.150.0030.05712.15
5.2.140.0030.04312.15
5.2.130.0070.05712.15
5.2.120.0030.05312.15
5.2.110.0030.06312.15
5.2.100.0030.04712.15
5.2.90.0030.03312.15
5.2.80.0030.06012.15
5.2.70.0070.05712.15
5.2.60.0100.06012.15
5.2.50.0030.04712.15
5.2.40.0000.06312.15
5.2.30.0070.05712.15
5.2.20.0030.06012.15
5.2.10.0100.05012.15
5.2.00.0030.05712.15
5.1.60.0030.05312.15
5.1.50.0000.05312.15
5.1.40.0030.05012.15
5.1.30.0070.05012.15
5.1.20.0030.05712.15
5.1.10.0000.06012.15
5.1.00.0030.05312.15
5.0.50.0030.02712.15
5.0.40.0030.04312.15
5.0.30.0030.06012.15
5.0.20.0000.04712.15
5.0.10.0030.04012.15
5.0.00.0000.06712.15
4.4.90.0030.03312.15
4.4.80.0000.03712.15
4.4.70.0030.03312.15
4.4.60.0070.03012.15
4.4.50.0000.03712.15
4.4.40.0000.05312.15
4.4.30.0030.03012.15
4.4.20.0000.02712.15
4.4.10.0000.02712.15
4.4.00.0030.05312.15
4.3.110.0030.03712.15
4.3.100.0000.03312.15
4.3.90.0000.03312.15
4.3.80.0000.03712.15
4.3.70.0030.03312.15
4.3.60.0000.03712.15
4.3.50.0070.03012.15
4.3.40.0070.04712.15
4.3.30.0000.04012.15
4.3.20.0030.03712.15
4.3.10.0030.03312.15
4.3.00.0070.03012.15

preferences:
44.68 ms | 401 KiB | 5 Q