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); } echo "Index: ", $index, " ", substr( $string, index);

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)
8.3.60.0060.01318.43
8.3.50.0170.00322.04
8.3.40.0140.00418.70
8.3.30.0090.00619.04
8.3.20.0030.00620.39
8.3.10.0070.00023.65
8.3.00.0000.00820.61
8.2.180.0070.01118.56
8.2.170.0090.00622.96
8.2.160.0130.00022.07
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0070.00020.89
8.2.110.0090.00022.08
8.2.100.0040.00717.75
8.2.90.0040.00419.23
8.2.80.0040.00418.03
8.2.70.0050.00517.63
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0000.00818.16
8.2.30.0040.00418.11
8.2.20.0040.00417.72
8.2.10.0070.00017.73
8.2.00.0050.00317.69
8.1.280.0100.01025.92
8.1.270.0000.00923.88
8.1.260.0120.00326.35
8.1.250.0070.00028.09
8.1.240.0090.00023.92
8.1.230.0080.00319.01
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0030.00717.35
8.1.190.0040.00417.52
8.1.180.0030.00518.10
8.1.170.0040.00418.65
8.1.160.0080.00022.11
8.1.150.0020.00518.60
8.1.140.0040.00417.36
8.1.130.0050.00317.84
8.1.120.0000.00717.50
8.1.110.0000.00717.54
8.1.100.0030.00317.54
8.1.90.0000.00817.44
8.1.80.0080.00017.47
8.1.70.0000.00717.39
8.1.60.0030.00517.48
8.1.50.0060.00317.53
8.1.40.0000.00717.35
8.1.30.0030.00517.53
8.1.20.0080.00017.72
8.1.10.0000.00717.53
8.1.00.0050.00217.54
8.0.300.0040.00418.77
8.0.290.0040.00417.05
8.0.280.0000.00718.39
8.0.270.0030.00317.27
8.0.260.0070.00016.74
8.0.250.0000.00716.94
8.0.240.0070.00016.87
8.0.230.0000.00716.95
8.0.220.0030.00316.85
8.0.210.0030.00316.96
8.0.200.0080.00016.89
8.0.190.0000.00717.04
8.0.180.0000.00816.94
8.0.170.0040.00417.02
8.0.160.0060.00316.91
8.0.150.0000.00716.80
8.0.140.0040.00416.92
8.0.130.0060.00013.29
8.0.120.0000.00816.96
8.0.110.0040.00416.95
8.0.100.0040.00416.88
8.0.90.0000.00816.92
8.0.80.0080.00816.96
8.0.70.0040.00417.01
8.0.60.0040.00416.85
8.0.50.0040.00416.79
8.0.30.0090.01017.08
8.0.20.0140.00917.40
8.0.10.0040.00417.17
8.0.00.0100.01216.67
7.4.330.0060.00015.05
7.4.320.0060.00016.63
7.4.300.0000.00616.41
7.4.290.0000.00716.50
7.4.280.0030.00516.51
7.4.270.0040.00416.52
7.4.260.0030.00416.64
7.4.250.0000.00716.39
7.4.240.0040.00416.53
7.4.230.0040.00416.39
7.4.220.0170.01016.55
7.4.210.0040.00916.64
7.4.200.0030.00316.49
7.4.190.0070.00016.63
7.4.160.0070.01016.32
7.4.150.0060.01117.40
7.4.140.0050.01317.86
7.4.130.0070.01016.54
7.4.120.0060.01216.48
7.4.110.0140.00416.67
7.4.100.0120.00616.56
7.4.90.0060.01216.42
7.4.80.0110.00616.58
7.4.70.0040.01316.53
7.4.60.0070.01016.51
7.4.50.0030.00616.20
7.4.40.0030.01322.77
7.4.30.0120.00316.38
7.4.00.0070.01114.87
7.3.330.0000.00613.20
7.3.320.0030.00313.34
7.3.310.0000.00816.36
7.3.300.0060.00016.39
7.3.290.0070.00016.39
7.3.280.0080.01016.44
7.3.270.0090.00917.40
7.3.260.0070.01016.60
7.3.250.0040.01316.46
7.3.240.0140.00316.40
7.3.230.0080.00916.59
7.3.210.0040.01216.40
7.3.200.0110.00619.39
7.3.190.0060.01216.34
7.3.180.0120.00416.42
7.3.170.0130.01016.45
7.3.160.0060.00916.57
7.3.120.0070.00715.13
7.3.10.0070.00716.48
7.3.00.0070.00716.54
7.2.330.0120.00616.73
7.2.320.0100.00716.62
7.2.310.0090.00916.65
7.2.300.0060.01016.68
7.2.290.0110.00516.70
7.2.130.0130.00017.02
7.2.120.0030.00616.85
7.2.110.0030.00616.86
7.2.100.0070.00717.01
7.2.90.0000.01516.92
7.2.80.0100.00516.65
7.2.70.0030.00616.97
7.2.60.0080.00716.94
7.2.50.0070.00717.02
7.2.40.0040.00816.93
7.2.30.0060.00917.05
7.2.20.0030.00716.90
7.2.10.0000.01616.98
7.2.00.0050.00818.22
7.1.250.0090.00615.95
7.1.200.0060.00915.86
7.1.100.0030.00918.43
7.1.70.0000.01417.21
7.1.60.0060.01619.32
7.1.50.0090.01216.69
7.1.00.0000.07722.40
7.0.200.0070.00316.77
7.0.140.0030.07022.21
7.0.60.0030.08720.04
7.0.50.0130.03317.80
7.0.40.0100.08019.90
7.0.30.0170.04320.21
7.0.20.0270.03020.30
7.0.10.0100.07320.12
7.0.00.0130.03720.30
5.6.280.0070.07021.02
5.6.210.0030.08020.76
5.6.200.0070.05718.15
5.6.190.0030.05720.57
5.6.180.0300.05020.60
5.6.170.0200.05320.37
5.6.160.0070.08320.50
5.6.150.0070.04318.18
5.6.140.0100.04718.09
5.6.130.0170.08018.18
5.6.120.0270.06321.05
5.6.110.0070.07721.00
5.6.100.0070.06321.04
5.6.90.0100.08020.97
5.6.80.0070.08320.48
5.5.350.3330.03020.32
5.5.340.0100.05717.98
5.5.330.0030.04320.23
5.5.320.0270.04320.28
5.5.310.0370.06320.31
5.5.300.0030.09017.92
5.5.290.0030.06318.02
5.5.280.0130.05020.76
5.5.270.0000.06320.88
5.5.260.0030.04020.79
5.5.250.0100.05020.68
5.5.240.0070.05020.15
5.4.450.1130.05719.43
5.4.440.1200.04719.56
5.4.430.0900.03719.24
5.4.420.1070.04319.24
5.4.410.0230.03718.97
5.4.400.1000.05018.67
5.4.390.1070.04718.67
5.4.380.0170.05018.69
5.4.370.0070.06318.51
5.4.360.0130.07318.74
5.4.350.0200.07018.68
5.4.340.0130.06718.63
5.4.320.0070.03512.45
5.4.310.0070.03612.45
5.4.300.0080.03812.45
5.4.290.0050.03812.45
5.4.280.0080.03912.35
5.4.270.0070.03512.35
5.4.260.0070.04112.35
5.4.250.0050.03812.35
5.4.240.0050.04212.35
5.4.230.0050.03712.34
5.4.220.0080.04212.34
5.4.210.0050.04412.34
5.4.200.0060.03712.34
5.4.190.0080.04012.34
5.4.180.0060.03812.34
5.4.170.0200.04212.34
5.4.160.0330.09312.33
5.4.150.0190.04112.33
5.4.140.0140.04612.01
5.4.130.0150.04312.00
5.4.120.0190.04211.96
5.4.110.0190.03911.95
5.4.100.0160.04411.96
5.4.90.0150.04711.95
5.4.80.0170.04311.95
5.4.70.0170.04211.95
5.4.60.0240.06211.95
5.4.50.0150.04211.95
5.4.40.0210.03611.94
5.4.30.0140.04611.93
5.4.20.0160.04111.93
5.4.10.0170.04011.93
5.4.00.0130.04411.42
5.3.290.0060.03912.80
5.3.280.0060.04612.71
5.3.270.0160.04612.72
5.3.260.0180.04512.72
5.3.250.0170.04412.72
5.3.240.0310.09112.72
5.3.230.0170.04612.70
5.3.220.0180.04412.68
5.3.210.0200.04412.68
5.3.200.0150.04812.68
5.3.190.0180.04612.68
5.3.180.0160.04512.68
5.3.170.0220.04012.67
5.3.160.0260.04612.67
5.3.150.0160.04612.68
5.3.140.0210.04212.66
5.3.130.0200.04412.66
5.3.120.0170.04512.66
5.3.110.0380.08512.66
5.3.100.0180.04712.11
5.3.90.0210.03812.08
5.3.80.0110.05012.08
5.3.70.0160.04612.07
5.3.60.0260.06612.06
5.3.50.0130.04712.00
5.3.40.0190.04512.00
5.3.30.0170.04211.95
5.3.20.0140.04511.73
5.3.10.0100.04811.68
5.3.00.0180.04111.67
5.2.170.0180.0329.18
5.2.160.0190.0299.18
5.2.150.0310.0789.18
5.2.140.0090.0399.18
5.2.130.0190.0299.14
5.2.120.0140.0339.13
5.2.110.0130.0389.14
5.2.100.0170.0349.14
5.2.90.0150.0329.13
5.2.80.0160.0339.13
5.2.70.0110.0379.13
5.2.60.0150.0359.09
5.2.50.0130.0389.05
5.2.40.0180.0309.03
5.2.30.0100.0379.00
5.2.20.0140.0369.00
5.2.10.0170.0308.93
5.2.00.0090.0378.78
5.1.60.0150.0278.07
5.1.50.0140.0288.07
5.1.40.0150.0298.05
5.1.30.0200.0318.39
5.1.20.0130.0368.43
5.1.10.0500.0908.15
5.1.00.0170.0298.15
5.0.50.0080.0266.63
5.0.40.0140.0226.48
5.0.30.0170.0596.30
5.0.20.0150.0216.27
5.0.10.0110.0216.24
5.0.00.0090.0366.23
4.4.90.0090.0184.78
4.4.80.0050.0214.76
4.4.70.0090.0184.76
4.4.60.0040.0224.75
4.4.50.0070.0184.77
4.4.40.0090.0284.71
4.4.30.0100.0164.76
4.4.20.0060.0204.84
4.4.10.0060.0204.85
4.4.00.0100.0264.75
4.3.110.0060.0194.67
4.3.100.0100.0154.67
4.3.90.0060.0194.63
4.3.80.0070.0284.58
4.3.70.0070.0184.63
4.3.60.0090.0174.63
4.3.50.0110.0144.63
4.3.40.0070.0294.53
4.3.30.0050.0193.30
4.3.20.0070.0183.29
4.3.10.0050.0193.26
4.3.00.0230.01715.56

preferences:
48.27 ms | 401 KiB | 5 Q