3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "ab"; $s1 = "cAbfAbe"; $s2 = $s1; do { $s2 = stristr($s2,$s); echo "$s2\n"; $s3 = substr($s2,0,count($s)+1); $s2 = substr($s2,count($s)); //echo "$s2\n"; } while ($s2 != false);

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)
8.3.60.0170.00316.75
8.3.50.0100.00917.48
8.3.40.0150.00018.83
8.3.30.0110.00418.72
8.3.20.0030.00518.82
8.3.10.0040.00418.65
8.3.00.0040.00419.38
8.2.180.0070.01116.88
8.2.170.0110.01122.96
8.2.160.0120.00321.15
8.2.150.0110.00724.18
8.2.140.0090.00024.66
8.2.130.0100.00326.16
8.2.120.0040.00420.94
8.2.110.0040.00419.38
8.2.100.0090.00317.72
8.2.90.0070.00319.30
8.2.80.0000.00919.39
8.2.70.0050.00317.63
8.2.60.0090.00317.91
8.2.50.0090.00018.07
8.2.40.0060.00318.25
8.2.30.0030.00717.94
8.2.20.0000.00917.71
8.2.10.0000.00717.86
8.2.00.0070.00317.84
8.1.280.0060.00925.92
8.1.270.0040.00424.66
8.1.260.0050.00226.35
8.1.250.0030.00628.09
8.1.240.0060.00323.65
8.1.230.0120.00022.81
8.1.220.0030.00517.80
8.1.210.0030.00618.89
8.1.200.0060.00317.48
8.1.190.0080.00017.52
8.1.180.0090.00018.10
8.1.170.0080.00018.66
8.1.160.0000.00818.75
8.1.150.0060.00318.73
8.1.140.0000.00717.43
8.1.130.0000.00717.77
8.1.120.0030.00517.35
8.1.110.0080.00017.50
8.1.100.0050.00217.46
8.1.90.0050.00217.46
8.1.80.0030.00417.33
8.1.70.0040.00417.33
8.1.60.0050.00317.62
8.1.50.0080.00017.48
8.1.40.0040.00417.54
8.1.30.0000.00817.48
8.1.20.0000.00817.66
8.1.10.0000.00817.55
8.1.00.0040.00417.38
8.0.300.0080.00020.04
8.0.290.0060.00316.63
8.0.280.0050.00218.34
8.0.270.0000.00717.32
8.0.260.0000.00616.78
8.0.250.0070.00016.90
8.0.240.0050.00217.04
8.0.230.0030.00317.05
8.0.220.0040.00416.92
8.0.210.0000.00716.98
8.0.200.0000.00716.82
8.0.190.0070.00016.94
8.0.180.0000.00717.02
8.0.170.0040.00416.84
8.0.160.0040.00416.95
8.0.150.0040.00416.86
8.0.140.0000.00916.78
8.0.130.0030.00313.36
8.0.120.0070.00016.91
8.0.110.0040.00416.80
8.0.100.0000.00716.77
8.0.90.0070.00016.93
8.0.80.0120.00316.82
8.0.70.0050.00316.94
8.0.60.0000.00816.95
8.0.50.0040.00416.81
8.0.30.0120.00617.25
8.0.20.0110.00717.16
8.0.10.0000.00716.93
8.0.00.0100.00816.80
7.4.330.0050.00013.10
7.4.320.0060.00016.43
7.4.300.0030.00316.57
7.4.290.0000.01016.50
7.4.280.0020.00516.41
7.4.270.0030.00316.44
7.4.260.0030.00313.25
7.4.250.0040.00416.55
7.4.240.0020.00516.50
7.4.230.0030.00316.30
7.4.220.0130.00716.57
7.4.210.0060.00916.53
7.4.200.0030.00516.49
7.4.190.0080.00016.73
7.4.160.0120.00416.42
7.4.150.0160.01016.51
7.4.140.0080.01416.53
7.4.130.0060.01116.55
7.4.120.0100.00916.51
7.4.110.0160.00916.71
7.4.100.0100.01016.53
7.4.90.0400.00716.52
7.4.80.0060.01219.39
7.4.70.0030.01416.68
7.4.60.0040.01216.52
7.4.50.0080.00416.27
7.4.40.0030.01216.51
7.4.30.0000.01816.21
7.4.00.0030.01015.04
7.3.330.0000.00613.33
7.3.320.0030.00313.25
7.3.310.0000.00816.24
7.3.300.0070.00016.48
7.3.290.0030.01416.30
7.3.280.0090.00816.32
7.3.270.0120.00416.32
7.3.260.0120.00616.32
7.3.250.0120.01216.40
7.3.240.0130.00716.48
7.3.230.0060.01416.45
7.3.210.0130.01016.44
7.3.200.0120.00916.34
7.3.190.0030.01516.36
7.3.180.0090.00916.55
7.3.170.0090.00616.41
7.3.160.0060.00916.37
7.3.120.0030.01314.81
7.3.00.0070.00716.59
7.2.330.0140.01016.68
7.2.320.0030.01616.66
7.2.310.0100.00716.55
7.2.300.0080.01116.52
7.2.290.0040.01416.57
7.2.130.0080.00816.79
7.2.120.0000.01716.96
7.2.110.0070.01016.88
7.2.100.0120.00017.09
7.2.90.0090.00616.98
7.2.80.0040.01116.80
7.2.70.0030.00717.07
7.2.60.0050.01016.87
7.2.50.0040.00416.77
7.2.40.0030.00616.80
7.2.30.0110.00417.00
7.2.20.0070.00716.96
7.2.10.0030.00916.93
7.2.00.0030.00917.89
7.1.250.0030.00915.92
7.1.240.0030.01015.75
7.1.230.0080.00415.48
7.1.220.0000.01015.75
7.1.210.0080.00415.46
7.1.200.0030.00815.82
7.1.190.0000.01615.82
7.1.180.0030.00615.52
7.1.170.0080.00415.68
7.1.160.0000.01415.81
7.1.150.0030.00615.93
7.1.140.0000.00715.84
7.1.130.0020.00515.78
7.1.120.0090.00915.64
7.1.110.0070.00715.77
7.1.100.0000.00916.94
7.1.90.0040.01115.66
7.1.80.0040.00415.93
7.1.70.0040.00816.31
7.1.60.0090.00817.62
7.1.50.0130.00925.18
7.1.40.0080.00315.69
7.1.30.0070.00315.92
7.1.20.0000.01415.91
7.1.10.0070.00715.68
7.1.00.0050.01819.07
7.0.330.0070.00715.28
7.0.320.0040.00815.26
7.0.310.0060.00615.45
7.0.300.0040.01115.30
7.0.290.0040.00415.06
7.0.280.0030.00615.36
7.0.270.0040.00415.14
7.0.260.0030.01015.39
7.0.250.0130.00015.34
7.0.240.0070.00415.06
7.0.230.0030.00615.39
7.0.220.0030.01015.27
7.0.210.0000.01115.38
7.0.200.0060.00515.95
7.0.190.0130.00315.27
7.0.180.0060.00615.42
7.0.170.0030.00715.13
7.0.160.0040.00415.53
7.0.150.0000.01515.43
7.0.140.0050.04018.60
7.0.130.0090.00015.29
7.0.120.0040.02318.75
7.0.110.0000.01315.25
7.0.100.0060.00915.15
7.0.90.0030.01015.27
7.0.80.0000.01515.34
7.0.70.0050.00315.32
7.0.60.0170.04217.68
7.0.50.0060.04016.70
7.0.40.0030.04916.86
7.0.30.0110.03616.79
7.0.20.0090.02016.63
7.0.10.0020.02716.72
7.0.00.0050.02416.84
5.6.380.0100.00314.57
5.6.370.0040.00714.18
5.6.360.0100.00314.48
5.6.350.0060.01014.29
5.6.340.0040.00713.84
5.6.330.0130.00014.46
5.6.320.0060.00614.57
5.6.310.0030.00914.15
5.6.300.0000.01214.48
5.6.290.0090.00314.05
5.6.280.0040.03917.69
5.6.270.0030.00514.16
5.6.260.0070.00714.26
5.6.250.0060.00314.43
5.6.240.0030.01013.93
5.6.230.0090.00614.23
5.6.220.0030.00814.34
5.6.210.0080.04317.37
5.6.200.0050.04516.03
5.6.190.0100.04317.19
5.6.180.0070.02517.17
5.6.170.0060.02517.26
5.6.160.0120.01917.37
5.6.150.0040.02217.19
5.6.140.0030.02717.38
5.6.130.0080.02317.25
5.6.120.0030.02517.32
5.6.110.0120.01817.09
5.6.100.0030.02517.32
5.6.90.0030.02817.09
5.6.80.0050.02716.88
5.6.70.0050.02317.04
5.6.60.0070.02116.90
5.6.50.0050.02917.09
5.6.40.0070.02216.94
5.6.30.0050.02216.89
5.6.20.0100.02016.82
5.6.10.0070.02316.98
5.6.00.0020.02916.99
5.5.380.0000.00510.90
5.5.370.0040.00410.90
5.5.360.0000.01011.04
5.5.350.0140.04215.73
5.5.340.0070.03714.40
5.5.330.0050.03615.57
5.5.320.0070.02515.73
5.5.310.0020.02815.67
5.5.300.0020.02715.56
5.5.290.0030.02315.40
5.5.280.0030.02515.40
5.5.270.0060.02115.57
5.5.260.0050.02815.48
5.5.250.0030.02415.49
5.5.240.0040.02115.24
5.5.230.0060.02015.16
5.5.220.0040.02215.25
5.5.210.0060.02115.12
5.5.200.0030.02515.23
5.5.190.0060.02115.31
5.5.180.0030.02415.08
5.5.170.0080.00311.05
5.5.160.0120.02315.27
5.5.150.0020.03115.12
5.5.140.0070.02715.10
5.5.130.0050.02515.21
5.5.120.0050.03215.11
5.5.110.0060.02615.29
5.5.100.0030.02515.09
5.5.90.0100.03915.19
5.5.80.0080.04015.12
5.5.70.0060.02715.16
5.5.60.0100.02515.28
5.5.50.0060.03415.05
5.5.40.0020.03015.18
5.5.30.0000.03715.17
5.5.20.0100.03815.20
5.5.10.0110.03215.24
5.5.00.0030.02515.10
5.4.450.0050.02115.29
5.4.440.0030.02215.30
5.4.430.0040.02115.09
5.4.420.0070.02115.03
5.4.410.0080.01514.99
5.4.400.0030.02015.02
5.4.390.0000.02415.09
5.4.380.0050.02215.12
5.4.370.0020.02315.05
5.4.360.0050.03015.04
5.4.350.0020.02215.08
5.4.340.0020.02314.85
5.4.330.0060.00311.05
5.4.320.0060.04015.04
5.4.310.0050.03215.04
5.4.300.0000.02415.04
5.4.290.0010.02715.04
5.4.280.0110.03514.84
5.4.270.0080.02314.96
5.4.260.0030.02315.04
5.4.250.0110.03715.04
5.4.240.0080.01814.91
5.4.230.0030.04514.91
5.4.220.0030.03014.90
5.4.210.0040.02314.91
5.4.200.0050.03814.84
5.4.190.0090.03615.02
5.4.180.0080.03514.92
5.4.170.0060.02215.03
5.4.160.0050.02314.98
5.4.150.0080.04015.01
5.4.140.0050.02513.55
5.4.130.0040.02013.60
5.4.120.0020.04313.62
5.4.110.0090.03413.65
5.4.100.0000.02813.69
5.4.90.0030.02213.57
5.4.80.0040.03813.61
5.4.70.0030.02213.65
5.4.60.0050.02713.60
5.4.50.0100.03813.58
5.4.40.0100.02513.59
5.4.30.0050.01913.55
5.4.20.0070.02813.69
5.4.10.0100.03813.65
5.4.00.0050.02513.29
5.3.290.0020.02612.68
5.3.280.0030.04112.71
5.3.270.0050.02612.74
5.3.260.0070.03212.74
5.3.250.0090.03712.80
5.3.240.0090.03712.71
5.3.230.0020.02212.69
5.3.220.0110.01812.64
5.3.210.0060.03812.68
5.3.200.0050.03112.71
5.3.190.0120.03112.74
5.3.180.0000.02612.69
5.3.170.0080.03212.70
5.3.160.0030.02412.70
5.3.150.0030.03012.63
5.3.140.0070.04012.67
5.3.130.0030.02212.63
5.3.120.0060.04212.69
5.3.110.0060.04112.66
5.3.100.0030.04012.42
5.3.90.0070.03712.43
5.3.80.0050.04012.37
5.3.70.0070.03912.42
5.3.60.0040.04312.42
5.3.50.0080.03812.46
5.3.40.0030.02612.40
5.3.30.0030.03112.37
5.3.20.0020.04112.28
5.3.10.0080.03112.25
5.3.00.0030.02612.23
5.2.170.0050.02110.95
5.2.160.0060.01511.00
5.2.150.0050.02611.02
5.2.140.0060.01810.99
5.2.130.0070.02810.99
5.2.120.0070.02710.97
5.2.110.0060.02810.95
5.2.100.0030.01711.04
5.2.90.0070.02810.93
5.2.80.0070.02810.96
5.2.70.0030.02910.99
5.2.60.0030.02810.95
5.2.50.0070.03210.92
5.2.40.0060.03110.89
5.2.30.0070.02310.94
5.2.20.0020.03510.88
5.2.10.0050.03110.83
5.2.00.0050.03310.80
5.1.60.0080.02510.43
5.1.50.0020.03210.45
5.1.40.0030.02210.39
5.1.30.0030.02910.61
5.1.20.0040.01810.63
5.1.10.0020.03410.56
5.1.00.0040.02210.47
5.0.50.0020.0189.76
5.0.40.0050.0109.65
5.0.30.0020.0329.55
5.0.20.0020.0249.58
5.0.10.0040.0089.55
5.0.00.0030.0179.55
4.4.90.0040.0139.08
4.4.80.0060.0129.08
4.4.70.0020.0229.08
4.4.60.0050.0109.08
4.4.50.0030.0189.08
4.4.40.0030.0229.08
4.4.30.0030.0209.08
4.4.20.0040.0129.08
4.4.10.0050.0179.08
4.4.00.0030.0169.08
4.3.110.0010.0209.08
4.3.100.0000.0159.08
4.3.90.0020.0139.08
4.3.80.0030.0279.08
4.3.70.0020.0209.08
4.3.60.0020.0139.08
4.3.50.0030.0139.08
4.3.40.0000.0169.08
4.3.30.0000.0199.08
4.3.20.0010.0169.08
4.3.10.0000.0209.08
4.3.00.0020.0129.08

preferences:
41.46 ms | 401 KiB | 5 Q