3v4l.org

run code in 300+ PHP versions simultaneously
<?php $haystack = 'this is a verygood school of sachin'; $pattern = 'sch'; for ($i = strlen($haystack); $i > 0; $i--) { echo $i . ' '; } for ($i = 0; $i < strlen($haystack); $i++) { echo $haystack[$i] . ' '; } $match = strstr($haystack, $pattern); $result = strlen($match) - strlen($pattern); 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)
8.3.60.0090.00918.43
8.3.50.0100.00522.09
8.3.40.0150.00318.46
8.3.30.0110.00419.22
8.3.20.0070.00020.16
8.3.10.0040.00423.41
8.3.00.0080.00020.79
8.2.180.0040.01416.75
8.2.170.0100.00722.96
8.2.160.0030.01020.34
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00419.36
8.2.110.0070.00422.11
8.2.100.0080.00417.91
8.2.90.0040.00417.91
8.2.80.0040.00420.58
8.2.70.0000.00818.05
8.2.60.0000.00817.93
8.2.50.0000.00918.10
8.2.40.0000.00720.59
8.2.30.0000.00818.32
8.2.20.0000.00817.61
8.2.10.0040.00418.00
8.2.00.0040.00417.73
8.1.280.0070.00725.92
8.1.270.0000.00823.63
8.1.260.0120.00926.35
8.1.250.0040.00428.09
8.1.240.0030.00720.87
8.1.230.0040.00720.96
8.1.220.0040.00417.79
8.1.210.0030.00618.79
8.1.200.0000.00917.23
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0040.00418.50
8.1.160.0030.00522.08
8.1.150.0050.00318.63
8.1.140.0040.00417.46
8.1.130.0040.00417.87
8.1.120.0000.00917.49
8.1.110.0000.00717.43
8.1.100.0040.00417.36
8.1.90.0050.00217.40
8.1.80.0040.00417.47
8.1.70.0070.00017.41
8.1.60.0060.00317.61
8.1.50.0050.00317.43
8.1.40.0000.01017.53
8.1.30.0000.00917.58
8.1.20.0000.00817.66
8.1.10.0050.00217.54
8.1.00.0030.00517.49
8.0.300.0050.00221.88
8.0.290.0000.00816.75
8.0.280.0070.00018.39
8.0.270.0030.00317.26
8.0.260.0030.00317.14
8.0.250.0030.00316.85
8.0.240.0030.00616.82
8.0.230.0070.00016.84
8.0.220.0070.00016.87
8.0.210.0000.00716.91
8.0.200.0030.00316.97
8.0.190.0040.00416.96
8.0.180.0040.00416.90
8.0.170.0000.00916.86
8.0.160.0040.00416.90
8.0.150.0070.00016.76
8.0.140.0080.00016.89
8.0.130.0000.00613.29
8.0.120.0050.00216.87
8.0.110.0040.00416.92
8.0.100.0070.00016.81
8.0.90.0050.00216.76
8.0.80.0040.01116.88
8.0.70.0040.00416.92
8.0.60.0000.00816.77
8.0.50.0050.00216.72
8.0.30.0100.00917.15
8.0.20.0110.00917.40
8.0.10.0000.00716.86
8.0.00.0080.01116.97
7.4.330.0000.00515.00
7.4.320.0000.00616.36
7.4.300.0000.00616.45
7.4.290.0070.00016.37
7.4.280.0000.00716.43
7.4.270.0080.00016.58
7.4.260.0000.00916.42
7.4.250.0030.00516.30
7.4.240.0050.00216.51
7.4.230.0000.00716.46
7.4.220.0060.01716.58
7.4.210.0070.00716.41
7.4.200.0040.00416.46
7.4.160.0090.00616.32
7.4.150.0140.00417.40
7.4.140.0100.00717.86
7.4.130.0100.01016.41
7.4.120.0130.00816.56
7.4.110.0180.00316.51
7.4.100.0100.01316.43
7.4.90.0070.01116.38
7.4.80.0160.00319.39
7.4.70.0100.00616.44
7.4.60.0110.00716.38
7.4.50.0040.00416.36
7.4.40.0000.01616.63
7.4.30.0000.01616.45
7.4.10.0100.01016.37
7.4.00.0070.00715.57
7.3.330.0030.00313.11
7.3.320.0060.00013.04
7.3.310.0060.00016.29
7.3.300.0030.00316.22
7.3.290.0130.01316.35
7.3.280.0080.00716.33
7.3.270.0120.00617.40
7.3.260.0100.01116.41
7.3.250.0090.01116.39
7.3.240.0030.01416.62
7.3.230.0100.00616.39
7.3.210.0080.00816.34
7.3.200.0100.01019.39
7.3.190.0100.01316.62
7.3.180.0100.00716.45
7.3.170.0110.01016.38
7.3.160.0090.01216.48
7.3.130.0120.00316.44
7.3.120.0090.00715.19
7.3.110.0050.01015.80
7.3.100.0050.00815.59
7.3.90.0040.00815.50
7.3.80.0080.00915.67
7.3.70.0030.00815.66
7.3.60.0040.00715.48
7.3.50.0030.00815.48
7.3.40.0040.01115.56
7.3.30.0080.00815.63
7.3.20.0120.00317.55
7.3.10.0050.00817.19
7.3.00.0070.00817.17
7.2.330.0070.01116.67
7.2.320.0150.00916.42
7.2.310.0110.00716.52
7.2.300.0130.00316.70
7.2.290.0140.00716.71
7.2.260.0040.01516.68
7.2.250.0040.01615.97
7.2.240.0070.01015.93
7.2.230.0070.00715.88
7.2.220.0070.00915.77
7.2.210.0100.00715.72
7.2.200.0060.00615.89
7.2.190.0030.01115.63
7.2.180.0000.01215.77
7.2.170.0110.00315.90
7.2.160.0040.01516.70
7.2.150.0070.00318.52
7.2.140.0100.00318.55
7.2.130.0030.00717.82
7.2.120.0080.00717.71
7.2.110.0030.01317.75
7.2.100.0100.00817.81
7.2.90.0090.00617.62
7.2.80.0030.01017.73
7.2.70.0090.00317.65
7.2.60.0050.01017.64
7.2.50.0020.01417.56
7.2.40.0050.01317.66
7.2.30.0080.00717.70
7.2.20.0060.00917.65
7.2.10.0060.00917.63
7.2.00.0060.00518.32
7.1.330.0040.01016.73
7.1.320.0070.01016.74
7.1.310.0030.01016.72
7.1.300.0050.00716.57
7.1.290.0070.00316.52
7.1.280.0040.00916.64
7.1.270.0050.00816.65
7.1.260.0090.00716.58
7.1.250.0140.00116.63
7.1.240.0040.00917.32
7.1.230.0090.00617.44
7.1.220.0060.01117.31
7.1.210.0070.00717.42
7.1.200.0040.00817.35
7.1.190.0030.00917.38
7.1.180.0000.01117.33
7.1.170.0030.01017.23
7.1.160.0000.01817.38
7.1.150.0030.00917.08
7.1.140.0090.00617.28
7.1.130.0000.01117.22
7.1.120.0070.00417.46
7.1.110.0060.00617.23
7.1.100.0010.00917.79
7.1.90.0060.00617.38
7.1.80.0000.01317.35
7.1.70.0050.00817.10
7.1.60.0090.00518.55
7.1.50.0110.01117.22
7.1.40.0030.01717.46
7.1.30.0030.00717.46
7.1.20.0000.01817.39
7.1.10.0130.00317.27
7.1.00.0030.04319.86
7.0.330.0060.00317.04
7.0.320.0060.00917.00
7.0.310.0060.00916.86
7.0.300.0100.00317.09
7.0.290.0040.00817.08
7.0.280.0060.00617.02
7.0.270.0090.00017.11
7.0.260.0070.00717.05
7.0.250.0070.00717.09
7.0.240.0000.01117.11
7.0.230.0090.00317.00
7.0.220.0030.00916.96
7.0.210.0070.00717.15
7.0.200.0030.00917.00
7.0.190.0090.00616.98
7.0.180.0060.01117.08
7.0.170.0100.00317.15
7.0.160.0070.00717.05
7.0.150.0000.01317.07
7.0.140.0080.03719.61
7.0.130.0080.00816.82
7.0.120.0030.00916.96
7.0.110.0120.00616.98
7.0.100.0070.00416.83
7.0.90.0040.00817.13
7.0.80.0070.01017.09
7.0.70.0040.03719.36
7.0.60.0060.04419.36
7.0.50.0060.02819.58
7.0.40.0040.02417.59
7.0.30.0040.02617.50
7.0.20.0070.04017.45
7.0.10.0090.02217.51
7.0.00.0050.04417.48
5.6.400.0100.00316.01
5.6.390.0060.01216.06
5.6.380.0000.01615.45
5.6.370.0060.00616.05
5.6.360.0090.00316.00
5.6.350.0040.01416.05
5.6.340.0100.00715.95
5.6.330.0060.00615.84
5.6.320.0060.00915.76
5.6.310.0080.00815.73
5.6.300.0100.00315.99
5.6.290.0060.00915.67
5.6.280.0020.04318.58
5.6.270.0030.01015.77
5.6.260.0050.01215.80
5.6.250.0070.00715.74
5.6.240.0030.00615.99
5.6.230.0120.00316.11
5.6.220.0070.03518.22
5.6.210.0070.04218.37
5.6.200.0080.02318.52
5.6.190.0050.04418.65
5.6.180.0030.02718.35
5.6.170.0040.02918.50
5.6.160.0090.03218.45
5.6.150.0000.02318.46
5.6.140.0060.02718.56
5.6.130.0060.02218.40
5.6.120.0050.02518.45
5.6.110.0050.04018.58
5.6.100.0070.04218.47
5.6.90.0090.04518.59
5.6.80.0030.03918.09
5.6.70.0060.02318.08
5.6.60.0040.01918.14
5.6.50.0030.02218.17
5.6.40.0050.03118.10
5.6.30.0030.02317.88
5.6.20.0070.03818.08
5.6.10.0030.04018.06
5.6.00.0030.02818.19
5.5.380.0090.00615.81
5.5.370.0040.00815.75
5.5.360.0030.05018.12
5.5.350.0060.04418.01
5.5.340.0100.04018.23
5.5.330.0030.04718.32
5.5.320.0020.03718.33
5.5.310.0030.02418.24
5.5.300.0040.04618.32
5.5.290.0020.02718.35
5.5.280.0090.04018.31
5.5.270.0030.05018.32
5.5.260.0090.02818.13
5.5.250.0070.04218.13
5.5.240.0070.02018.02
5.5.230.0050.04418.04
5.5.220.0060.01717.96
5.5.210.0030.03217.98
5.5.200.0020.03317.93
5.5.190.0030.02317.86
5.5.180.0050.02118.11
5.5.170.0000.01515.59
5.5.160.0050.04317.75
5.5.150.0020.04217.97
5.5.140.0020.04418.01
5.5.130.0060.03018.01
5.5.120.0070.04017.87
5.5.110.0020.03018.04
5.5.100.0100.03217.80
5.5.90.0060.04117.95
5.5.80.0100.03117.81
5.5.70.0040.04117.95
5.5.60.0020.04517.88
5.5.50.0090.03617.81
5.5.40.0030.04417.88
5.5.30.0050.04117.96
5.5.20.0080.03817.83
5.5.10.0050.04017.75
5.5.00.0070.02217.82
5.4.450.0100.03316.11
5.4.440.0060.03716.05
5.4.430.0050.03316.04
5.4.420.0040.03015.93
5.4.410.0050.03515.83
5.4.400.0030.04015.76
5.4.390.0030.03015.72
5.4.380.0000.03415.64
5.4.370.0030.02316.02
5.4.360.0060.03915.79
5.4.350.0000.02615.64
5.4.340.0030.02315.81
5.4.330.0080.00312.62
5.4.320.0000.04215.77
5.4.310.0060.03815.77
5.4.300.0030.03815.75
5.4.290.0020.04315.89
5.4.280.0040.03715.82
5.4.270.0000.03915.73
5.4.260.0030.03815.94
5.4.250.0050.03315.71
5.4.240.0020.04315.64
5.4.230.0050.03115.85
5.4.220.0040.04015.84
5.4.210.0030.02815.78
5.4.200.0020.04315.83
5.4.190.0020.04215.65
5.4.180.0030.04215.85
5.4.170.0020.03215.74
5.4.160.0020.04215.82
5.4.150.0050.03815.80
5.4.140.0020.03114.40
5.4.130.0030.02514.46
5.4.120.0070.03314.24
5.4.110.0030.03014.57
5.4.100.0040.03214.52
5.4.90.0060.03814.45
5.4.80.0100.03614.47
5.4.70.0020.04114.54
5.4.60.0050.03314.33
5.4.50.0030.04314.41
5.4.40.0070.03614.56
5.4.30.0010.04114.43
5.4.20.0020.02314.50
5.4.10.0100.02714.44
5.4.00.0030.03814.18
5.3.290.0080.03713.81
5.3.280.0030.03713.76
5.3.270.0020.04413.75
5.3.260.0040.02713.84
5.3.250.0010.04113.71
5.3.240.0020.02813.60
5.3.230.0050.03813.74
5.3.220.0070.03913.67
5.3.210.0020.03513.58
5.3.200.0040.02313.64
5.3.190.0040.04113.75
5.3.180.0050.04013.82
5.3.170.0050.03813.76
5.3.160.0040.03713.80
5.3.150.0060.03913.71
5.3.140.0030.04213.77
5.3.130.0000.03913.67
5.3.120.0060.01913.80
5.3.110.0020.02913.79
5.3.100.0020.02213.51
5.3.90.0010.02613.37
5.3.80.0060.01813.24
5.3.70.0050.01913.29
5.3.60.0000.04313.48
5.3.50.0040.02713.33
5.3.40.0020.02913.31
5.3.30.0030.02513.37
5.3.20.0020.03613.33
5.3.10.0050.02013.10
5.3.00.0070.04213.03
5.2.170.0000.03011.10
5.2.160.0000.05011.13
5.2.150.0030.02711.21
5.2.140.0070.05710.98
5.2.130.0070.04311.10
5.2.120.0000.06011.10
5.2.110.0000.06011.15
5.2.100.0070.05711.15
5.2.90.0070.05710.93
5.2.80.0030.05711.09
5.2.70.0000.06310.94
5.2.60.0070.05311.05
5.2.50.0000.06310.96
5.2.40.0000.05010.99
5.2.30.0070.06010.86
5.2.20.0030.05710.86
5.2.10.0030.06310.88
5.2.00.0070.05710.86
5.1.60.0070.05310.86
5.1.50.0070.03710.86
5.1.40.0000.05010.86
5.1.30.0030.04310.86
5.1.20.0000.06010.86
5.1.10.0070.05310.86
5.1.00.0030.05010.86
5.0.50.0000.04310.86
5.0.40.0000.04010.86
5.0.30.0030.06010.86
5.0.20.0030.02010.86
5.0.10.0070.03710.86
5.0.00.0000.04310.86
4.4.90.0070.01710.86
4.4.80.0000.03710.86
4.4.70.0030.03710.86
4.4.60.0000.03310.86
4.4.50.0030.03310.86
4.4.40.0030.04310.86
4.4.30.0030.03310.86
4.4.20.0000.03710.86
4.4.10.0030.03310.86
4.4.00.0030.05710.86
4.3.110.0070.02710.86
4.3.100.0000.03010.86
4.3.90.0000.03710.86
4.3.80.0000.02710.86
4.3.70.0030.03310.86
4.3.60.0000.02710.86
4.3.50.0000.02310.86
4.3.40.0070.04710.86
4.3.30.0070.02310.86
4.3.20.0000.03710.86
4.3.10.0000.03710.86
4.3.00.0070.03310.86

preferences:
65.06 ms | 401 KiB | 5 Q