3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "[vc_tab [vc_tab [vc_tab [vc_tab [vc_tab [vc_tab"; $active = 3; $needle = "[vc_tab"; $replace = '[vc_tab active="true"'; if( substr_count( $string, $needle) < $active) { throw new Exception("There aren't enough needles in the string to do this replacement"); } $count = 0; $index = 0; while( $count++ < $active) { $index = strpos( $string, $needle, $index) + strlen( $needle); } $result = substr( $string, 0, $index - strlen( $needle)) . $replace . substr( $string, $index); echo "Index: ", $index, " ", $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)
8.3.60.0100.01016.50
8.3.50.0140.00521.96
8.3.40.0040.01418.57
8.3.30.0070.00718.95
8.3.20.0050.00220.14
8.3.10.0040.00423.38
8.3.00.0040.00419.25
8.2.180.0110.00718.29
8.2.170.0100.00722.96
8.2.160.0160.00320.38
8.2.150.0000.00824.18
8.2.140.0060.00324.66
8.2.130.0030.00626.16
8.2.120.0050.00222.08
8.2.110.0000.00822.20
8.2.100.0060.00617.68
8.2.90.0040.00419.09
8.2.80.0050.00317.97
8.2.70.0080.00017.50
8.2.60.0040.00417.80
8.2.50.0030.00619.22
8.2.40.0040.00418.16
8.2.30.0040.00418.13
8.2.20.0030.00517.71
8.2.10.0070.00018.21
8.2.00.0080.00317.78
8.1.280.0110.00725.92
8.1.270.0000.00822.14
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0050.00523.96
8.1.230.0060.00619.05
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0030.00617.41
8.1.180.0080.00018.10
8.1.170.0070.00018.64
8.1.160.0040.00422.02
8.1.150.0040.00718.66
8.1.140.0070.00017.35
8.1.130.0000.00717.84
8.1.120.0040.00417.38
8.1.110.0070.00017.50
8.1.100.0020.00517.40
8.1.90.0040.00417.48
8.1.80.0000.00717.39
8.1.70.0030.00317.45
8.1.60.0040.00417.61
8.1.50.0000.00917.55
8.1.40.0080.00017.57
8.1.30.0030.00517.61
8.1.20.0000.00917.50
8.1.10.0000.00817.57
8.1.00.0030.00617.46
8.0.300.0000.00718.77
8.0.290.0000.00817.16
8.0.280.0030.00318.45
8.0.270.0030.00317.34
8.0.260.0030.00316.84
8.0.250.0030.00316.96
8.0.240.0030.00616.91
8.0.230.0030.00316.86
8.0.220.0090.00016.96
8.0.210.0040.00416.94
8.0.200.0060.00016.84
8.0.190.0030.00316.86
8.0.180.0070.00016.94
8.0.170.0070.00016.94
8.0.160.0050.00316.86
8.0.150.0030.00316.75
8.0.140.0030.00616.85
8.0.130.0000.00513.32
8.0.120.0030.00516.86
8.0.110.0050.00216.84
8.0.100.0050.00316.93
8.0.90.0000.00816.86
8.0.80.0090.00616.86
8.0.70.0040.00416.71
8.0.60.0000.00716.94
8.0.50.0040.00416.82
8.0.30.0080.01116.94
8.0.20.0080.01017.40
8.0.10.0030.00516.85
8.0.00.0090.00916.88
7.4.330.0050.00015.01
7.4.320.0000.00616.68
7.4.300.0070.00016.62
7.4.290.0020.00516.54
7.4.280.0000.00716.66
7.4.270.0030.00316.64
7.4.260.0060.00316.61
7.4.250.0020.00516.46
7.4.240.0020.00716.58
7.4.230.0000.00716.45
7.4.220.0080.01216.47
7.4.210.0060.01016.55
7.4.200.0070.00016.37
7.4.190.0000.00716.29
7.4.160.0100.01316.54
7.4.150.0090.00917.40
7.4.140.0070.01217.86
7.4.130.0080.00916.52
7.4.120.0150.00316.61
7.4.110.0070.01016.43
7.4.100.0120.01216.54
7.4.90.0030.01616.27
7.4.80.0070.01319.39
7.4.70.0090.00616.55
7.4.60.0060.01016.47
7.4.50.0060.00316.24
7.4.40.0060.00622.77
7.4.30.0060.01016.54
7.4.00.0080.00614.68
7.3.330.0000.00513.08
7.3.320.0070.00013.09
7.3.310.0000.00716.44
7.3.300.0000.00716.21
7.3.290.0090.00416.52
7.3.280.0080.00716.41
7.3.270.0170.00017.40
7.3.260.0100.00716.61
7.3.250.0070.01016.34
7.3.240.0090.00916.27
7.3.230.0070.01016.54
7.3.210.0130.00316.23
7.3.200.0110.00719.39
7.3.190.0060.01216.21
7.3.180.0150.00016.50
7.3.170.0080.00816.51
7.3.160.0090.00616.57
7.3.120.0170.00015.00
7.2.330.0040.01416.69
7.2.320.0110.01116.86
7.2.310.0100.00716.62
7.2.300.0030.01416.63
7.2.290.0090.01216.52
7.2.00.0000.01419.62
7.1.200.0030.00715.87
7.1.100.0110.00017.91
7.1.70.0040.00417.14
7.1.60.0130.01319.33
7.1.50.0040.01916.85
7.1.00.0030.07722.44
7.0.200.0000.00716.89
7.0.140.0000.07022.09
7.0.110.0070.08720.10
7.0.100.0030.08719.96
7.0.90.0070.08319.91
7.0.80.0200.06720.07
7.0.70.0100.05719.97
7.0.60.0130.03719.94
7.0.50.0030.04320.43
7.0.40.0070.03720.16
7.0.30.0070.04020.16
7.0.20.0000.04720.18
7.0.10.0170.02720.02
7.0.00.0030.05020.21
5.6.280.0030.07320.92
5.6.260.0000.08720.63
5.6.250.0070.08320.69
5.6.240.0070.05720.71
5.6.230.0070.08720.52
5.6.220.0100.08320.62
5.6.210.0100.07720.58
5.6.200.0030.04320.93
5.6.190.0030.06321.02
5.6.180.0030.04320.90
5.6.170.0130.03721.14
5.6.160.0000.04321.13
5.6.150.0000.04721.28
5.6.140.0100.07721.13
5.6.130.0030.05020.91
5.6.120.0100.07721.05
5.6.110.0030.05721.13
5.6.100.0070.04021.20
5.6.90.0030.06720.91
5.6.80.0030.04720.57
5.6.70.0070.06020.45
5.6.60.0030.04020.29
5.6.50.0100.03720.46
5.6.40.0070.05320.43
5.6.30.0030.04020.29
5.6.20.0030.04020.54
5.6.10.0070.03720.28
5.6.00.0100.03320.48
5.5.380.0070.07720.51
5.5.370.0070.08020.56
5.5.360.0030.08020.45
5.5.350.0030.08320.43
5.5.340.0070.07020.70
5.5.330.0100.03320.97
5.5.320.0070.06720.96
5.5.310.0030.04020.98
5.5.300.0070.04020.70
5.5.290.0100.04020.84
5.5.280.0070.08320.81
5.5.270.0270.07020.87
5.5.260.0030.04320.94
5.5.250.0100.06020.62
5.5.240.0070.03720.32
5.5.230.0100.03320.39
5.5.220.0000.04320.18
5.5.210.0130.03020.28
5.5.200.0130.03020.05
5.5.190.0030.04320.13
5.5.180.0100.03320.30
5.5.160.0000.04320.12
5.5.150.0030.04020.27
5.5.140.0130.04020.12
5.5.130.0130.04020.38
5.5.120.0000.04720.12
5.5.110.0070.05720.23
5.5.100.0070.08020.17
5.5.90.0070.06720.24
5.5.80.0100.04020.14
5.5.70.0000.07720.15
5.5.60.0100.07320.23
5.5.50.0070.08020.14
5.5.40.0070.06320.23
5.5.30.0100.06320.08
5.5.20.0030.08020.11
5.5.10.0100.06719.95
5.5.00.0030.05020.12
5.4.450.0070.05019.31
5.4.440.0070.08019.44
5.4.430.0100.03319.25
5.4.420.0130.06019.35
5.4.410.0100.03719.30
5.4.400.0100.03319.25
5.4.390.0030.04019.10
5.4.380.0070.03318.98
5.4.370.0030.04719.10
5.4.360.0030.06718.95
5.4.350.0100.03018.95
5.4.340.0070.03318.95
5.4.320.0070.03318.95
5.4.310.0030.04719.15
5.4.300.0070.03319.00
5.4.290.0070.05318.98
5.4.280.0070.03319.12
5.4.270.0030.04019.02
5.4.260.0000.04319.18
5.4.250.0100.05718.92
5.4.240.0030.05319.11
5.4.230.0070.06718.92
5.4.220.0130.06319.24
5.4.210.0170.06718.94
5.4.200.0100.06718.94
5.4.190.0000.05319.01
5.4.180.0130.06719.06
5.4.170.0070.08019.15
5.4.160.0030.07719.05
5.4.150.0100.07319.01
5.4.140.0030.07316.46
5.4.130.0070.04016.48
5.4.120.0000.04716.48
5.4.110.0170.06316.47
5.4.100.0070.07316.20
5.4.90.0130.06016.28
5.4.80.0100.07016.27
5.4.70.0030.07716.27
5.4.60.0070.07316.34
5.4.50.0030.04716.26
5.4.40.0070.04316.31
5.4.30.0070.06716.37
5.4.20.0100.07016.49
5.4.10.0130.06316.16
5.4.00.0170.06715.64
5.3.290.0030.03714.73
5.3.280.0100.07014.43
5.3.270.0070.07014.51
5.3.260.0130.07314.49
5.3.250.0070.07014.40
5.3.240.0070.07314.43
5.3.230.0100.07314.62
5.3.220.0030.07714.50
5.3.210.0070.08014.50
5.3.200.0130.06014.43
5.3.190.0030.07014.59
5.3.180.0100.06314.66
5.3.170.0030.08314.65
5.3.160.0070.07714.46
5.3.150.0100.06714.39
5.3.140.0100.07314.55
5.3.130.0130.05014.47
5.3.120.0030.07714.62
5.3.110.0100.07314.45
5.3.100.0100.07013.98
5.3.90.0070.06013.94
5.3.80.0030.07313.94
5.3.70.0100.07314.02
5.3.60.0000.05014.09
5.3.50.0070.05713.88
5.3.40.0030.06013.79
5.3.30.0070.04313.83
5.3.20.0000.08013.76
5.3.10.0070.06713.44
5.3.00.0070.04313.65
5.2.170.0070.06011.98
5.2.160.0070.05711.98
5.2.150.0100.05311.98
5.2.140.0030.05311.98
5.2.130.0030.06011.98
5.2.120.0030.03711.98
5.2.110.0070.06011.98
5.2.100.0100.06011.98
5.2.90.0030.04011.98
5.2.80.0030.06011.98
5.2.70.0030.05311.98
5.2.60.0100.05711.98
5.2.50.0100.05711.98
5.2.40.0000.04011.98
5.2.30.0070.06311.98
5.2.20.0100.05311.98
5.2.10.0030.05311.98
5.2.00.0100.05711.98
5.1.60.0070.05011.98
5.1.50.0100.04711.98
5.1.40.0000.04311.98
5.1.30.0000.06011.98
5.1.20.0000.06011.98
5.1.10.0070.05311.98
5.1.00.0000.05711.98
5.0.50.0230.02711.98
5.0.40.0000.02711.98
5.0.30.0030.04711.98
5.0.20.0070.03311.98
5.0.10.0070.03311.98
5.0.00.0000.06011.98
4.4.90.0000.03711.98
4.4.80.0030.03311.98
4.4.70.0000.03311.98
4.4.60.0070.03011.98
4.4.50.0000.03711.98
4.4.40.0100.04311.98
4.4.30.0000.03711.98
4.4.20.0000.03711.98
4.4.10.0000.03311.98
4.4.00.0030.04311.98
4.3.110.0030.03311.98
4.3.100.0030.03011.98
4.3.90.0000.03711.98
4.3.80.0000.05711.98
4.3.70.0000.03711.98
4.3.60.0070.02311.98
4.3.50.0030.03011.98
4.3.40.0030.03311.98
4.3.30.0000.03311.98
4.3.20.0000.02311.98
4.3.10.0000.03711.98
4.3.00.0030.03311.98

preferences:
35.88 ms | 401 KiB | 5 Q