3v4l.org

run code in 300+ PHP versions simultaneously
<?php $count = 100000; $string = 'sdfhksdhfsdfhjskfhsdfhs_kshfksdhfksdhfsjkd_kjsdfhksdfhjsdfhsdj_jsdfhkshfj'; for ($i = 0; $i < $count; $i++) { $stringReplace = preg_replace('/_/', ' ', $string); } echo $string.PHP_EOL; echo $stringReplace;

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)
8.3.40.0160.01918.80
8.3.30.0070.02919.00
8.3.20.0030.01620.29
8.3.10.0070.01420.48
8.3.00.0040.01619.38
8.2.170.0100.02622.96
8.2.160.0120.02220.35
8.2.150.0080.01124.18
8.2.140.0000.01924.66
8.2.130.0060.01226.16
8.2.120.0070.01322.20
8.2.110.0070.02020.47
8.2.100.0030.02418.15
8.2.90.0040.02118.88
8.2.80.0000.02617.97
8.2.70.0070.02017.61
8.2.60.0040.02117.80
8.2.50.0080.03118.07
8.2.40.0030.02318.09
8.2.30.0000.02518.01
8.2.20.0030.02217.93
8.2.10.0040.02218.14
8.2.00.0040.02217.88
8.1.270.0060.01524.01
8.1.260.0040.01526.35
8.1.250.0000.01928.09
8.1.240.0030.02323.86
8.1.230.0030.02719.02
8.1.220.0030.02317.79
8.1.210.0000.02618.77
8.1.200.0030.02417.35
8.1.190.0060.02117.25
8.1.180.0030.02418.10
8.1.170.0030.02418.72
8.1.160.0030.02321.89
8.1.150.0060.01918.90
8.1.140.0030.02217.55
8.1.130.0040.02217.85
8.1.120.0000.02717.56
8.1.110.0030.02217.44
8.1.100.0070.02017.47
8.1.90.0000.02717.55
8.1.80.0030.02217.58
8.1.70.0030.02317.50
8.1.60.0060.02217.56
8.1.50.0030.02517.66
8.1.40.0030.02317.58
8.1.30.0030.02517.67
8.1.20.0030.02517.58
8.1.10.0070.02017.52
8.1.00.0070.02017.56
8.0.300.0070.01618.77
8.0.290.0030.02416.75
8.0.280.0030.02318.51
8.0.270.0000.02317.27
8.0.260.0070.02017.21
8.0.250.0000.02517.13
8.0.240.0000.02617.07
8.0.230.0000.02517.14
8.0.220.0000.02616.97
8.0.210.0030.02417.03
8.0.200.0030.02017.01
8.0.190.0000.02717.14
8.0.180.0030.02516.96
8.0.170.0040.02517.07
8.0.160.0060.01917.00
8.0.150.0000.02816.94
8.0.140.0000.02716.96
8.0.130.0060.02013.51
8.0.120.0070.02316.90
8.0.110.0100.01717.07
8.0.100.0100.01717.03
8.0.90.0030.02416.94
8.0.80.0060.05417.03
8.0.70.0030.02317.10
8.0.60.0000.02616.91
8.0.50.0000.02616.91
8.0.30.0110.03317.39
8.0.20.0100.04117.52
8.0.10.0100.01616.95
8.0.00.0090.04016.77
7.4.330.0000.02315.01
7.4.320.0070.02316.72
7.4.300.0030.03016.73
7.4.290.0030.02316.72
7.4.280.0070.02116.73
7.4.270.0030.02316.76
7.4.260.0000.02716.69
7.4.250.0000.02816.52
7.4.240.0050.02316.71
7.4.230.0070.02016.85
7.4.220.0160.03816.67
7.4.210.0030.03716.75
7.4.200.0000.02616.39
7.4.160.0110.03016.61
7.4.150.0130.05217.40
7.4.140.0070.04617.86
7.4.130.0080.05216.54
7.4.120.0130.03116.57
7.4.110.0140.03116.65
7.4.100.0070.05416.82
7.4.90.0090.03516.71
7.4.80.0090.06519.39
7.4.70.0150.02816.66
7.4.60.0030.04116.78
7.4.50.0030.03616.73
7.4.40.0100.03316.46
7.4.30.0030.04216.64
7.4.00.0070.03715.23
7.3.330.0070.02813.39
7.3.320.0000.02613.29
7.3.310.0030.02616.38
7.3.300.0030.02616.33
7.3.290.0000.04016.46
7.3.280.0090.04816.45
7.3.270.0150.03017.40
7.3.260.0110.04516.77
7.3.250.0070.03716.57
7.3.240.0070.04516.45
7.3.230.0110.03616.76
7.3.210.0030.04616.38
7.3.200.0060.03919.39
7.3.190.0100.06116.65
7.3.180.0100.03316.44
7.3.170.0030.04316.70
7.3.160.0130.02916.47
7.3.10.0140.05216.49
7.3.00.0030.05316.23
7.2.330.0030.04816.59
7.2.320.0130.03316.79
7.2.310.0140.03516.66
7.2.300.0030.06416.71
7.2.290.0200.05316.76
7.2.130.0210.04516.58
7.2.120.0100.04316.25
7.2.110.0140.05616.37
7.2.100.0160.04617.09
7.2.90.0260.03617.22
7.2.80.0150.04516.79
7.2.70.0130.04716.57
7.2.60.0070.05117.10
7.2.50.0140.04516.96
7.2.40.0220.04316.62
7.2.30.0100.04816.59
7.2.20.0170.05416.55
7.2.10.0100.05016.60
7.2.00.0120.05516.70
7.1.250.0130.05615.79
7.1.100.0100.03817.85
7.1.70.0030.03417.48
7.1.60.0100.06619.32
7.1.50.0100.07117.30
7.1.00.0070.12322.58
7.0.200.0000.04216.69
7.0.140.0030.12022.21
7.0.60.0070.08319.91
7.0.50.0030.08317.90
7.0.40.0130.06720.32
7.0.30.0400.09320.14
7.0.20.0270.12320.23
7.0.10.0070.13320.11
7.0.00.0130.12320.09
5.6.280.0100.16321.06
5.6.210.0000.12320.50
5.6.200.0030.17718.22
5.6.190.0100.10320.60
5.6.180.0430.12320.32
5.6.170.0430.15320.61
5.6.160.0130.15720.40
5.6.150.0070.14318.12
5.6.140.0070.12018.18
5.6.130.0100.15718.08
5.6.120.0100.15720.80
5.6.110.0000.18020.98
5.6.100.0030.10321.11
5.6.90.0070.10320.94
5.6.80.0130.16320.38
5.5.350.0170.12720.43
5.5.340.0070.15718.01
5.5.330.0100.13020.21
5.5.320.0300.13720.17
5.5.310.0330.14720.50
5.5.300.0100.14317.91
5.5.290.0070.16318.00
5.5.280.0100.17320.73
5.5.270.0030.16720.94
5.5.260.0030.11020.96
5.5.250.0030.17320.58
5.5.240.0400.13320.16
5.4.450.0270.11319.39
5.4.440.0270.12019.54
5.4.430.0330.09719.48
5.4.420.1700.00019.68
5.4.410.1530.00019.21
5.4.400.1700.00019.05
5.4.390.1500.00018.92
5.4.380.1730.00019.16
5.4.370.1570.00018.95
5.4.360.1830.00019.06
5.4.350.1570.00019.16
5.4.340.1530.00019.05
5.4.320.0050.11912.45
5.4.310.0050.10412.45
5.4.300.0090.10312.45
5.4.290.0050.10812.45
5.4.280.0070.10412.35
5.4.270.0090.11712.35
5.4.260.0100.11412.35
5.4.250.0050.11312.35
5.4.240.0070.11012.35
5.4.230.0080.11712.34
5.4.220.0080.11812.34
5.4.210.0060.11312.34
5.4.200.0060.10712.34
5.4.190.0090.11412.34
5.4.180.0090.11412.34
5.4.170.0070.10412.35
5.4.160.0090.10212.35
5.4.150.0030.10512.34
5.4.140.0040.11112.03
5.4.130.0060.10412.01
5.4.120.0060.10811.97
5.4.110.0060.11711.97
5.4.100.0060.10811.97
5.4.90.0050.13011.96
5.4.80.0070.11811.96
5.4.70.0100.10711.96
5.4.60.0060.10611.96
5.4.50.0060.12111.96
5.4.40.0090.11211.95
5.4.30.0070.10711.95
5.4.20.0070.10611.95
5.4.10.0040.12211.95
5.4.00.0050.10911.44
5.3.290.0040.11812.80
5.3.280.0060.11512.71
5.3.270.0070.11912.73
5.3.260.0090.10912.72
5.3.250.0070.11112.72
5.3.240.0070.12912.72
5.3.230.0090.10612.71
5.3.220.0050.11112.68
5.3.210.0080.11612.68
5.3.200.0080.11512.68
5.3.190.0090.10812.68
5.3.180.0060.11412.68
5.3.170.0060.12212.67
5.3.160.0050.12512.67
5.3.150.0070.11012.68
5.3.140.0060.11612.66
5.3.130.0090.11712.66
5.3.120.0070.11112.66
5.3.110.0100.12012.66
5.3.100.0070.12312.12
5.3.90.0090.10412.09
5.3.80.0090.11912.08
5.3.70.0070.13012.07
5.3.60.0080.11212.06
5.3.50.0050.11612.00
5.3.40.0050.12212.00
5.3.30.0060.11611.95
5.3.20.0100.11611.72
5.3.10.0040.11811.69
5.3.00.0080.11011.68
5.2.170.0040.1189.18
5.2.160.0070.1069.18
5.2.150.0060.1259.18
5.2.140.0080.1279.18
5.2.130.0060.1049.14
5.2.120.0050.1119.13
5.2.110.0110.1879.14
5.2.100.0080.1919.14
5.2.90.0080.1209.14
5.2.80.0040.1069.13
5.2.70.0060.1119.13
5.2.60.0070.0989.09
5.2.50.0080.1189.06
5.2.40.0080.0989.04
5.2.30.0040.1109.02
5.2.20.0110.0979.00
5.2.10.0030.0968.92
5.2.00.0020.1058.78
5.1.60.0040.1068.06
5.1.50.0040.1048.05
5.1.40.0030.1108.04
5.1.30.0030.1048.39
5.1.20.0070.1018.41
5.1.10.0040.1238.13
5.1.00.0040.1098.14
5.0.50.0020.1276.61
5.0.40.0080.1276.48
5.0.30.0050.1246.29
5.0.20.0030.1276.26
5.0.10.0040.1236.24
5.0.00.0040.1386.23
4.4.90.0070.1264.78
4.4.80.0040.1174.76
4.4.70.0060.1404.75
4.4.60.0030.1284.75
4.4.50.0060.1254.77
4.4.40.0040.1334.71
4.4.30.0050.1234.76
4.4.20.0050.1214.84
4.4.10.0010.1274.85
4.4.00.0020.1294.76
4.3.110.0060.1234.67
4.3.100.0040.1164.66
4.3.90.0020.1154.63
4.3.80.0040.1344.59
4.3.70.0040.1254.63
4.3.60.0020.1294.63
4.3.50.0060.1164.63
4.3.40.0030.1224.54
4.3.30.0020.1173.28
4.3.20.0030.1143.26
4.3.10.0020.1123.22
4.3.00.0000.12013.59

preferences:
43.44 ms | 400 KiB | 5 Q