3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr_count('abcde', 'de', -2, 2));

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)
8.3.70.0110.01116.63
8.3.60.0120.00616.63
8.3.50.0110.00921.95
8.3.40.0140.00318.52
8.3.30.0110.00418.69
8.3.20.0080.00020.21
8.3.10.0050.00223.66
8.3.00.0040.00422.44
8.2.190.0160.00318.39
8.2.180.0140.00418.29
8.2.170.0110.00322.96
8.2.160.0080.00619.34
8.2.150.0070.00025.66
8.2.140.0090.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00420.65
8.2.110.0070.00321.10
8.2.100.0070.00417.59
8.2.90.0040.00419.41
8.2.80.0050.00218.03
8.2.70.0060.00317.50
8.2.60.0040.00717.38
8.2.50.0060.00317.55
8.2.40.0070.00020.59
8.2.30.0000.00719.12
8.2.20.0040.00417.45
8.2.10.0050.00317.85
8.2.00.0060.00317.46
8.1.280.0070.00725.92
8.1.270.0080.00023.96
8.1.260.0060.00326.35
8.1.250.0000.00728.09
8.1.240.0050.00522.46
8.1.230.0060.00622.66
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0040.00416.98
8.1.180.0060.00318.79
8.1.170.0030.00618.40
8.1.160.0000.00722.12
8.1.150.0000.00818.75
8.1.140.0050.00619.45
8.1.130.0030.00517.57
8.1.120.0030.00317.25
8.1.110.0020.00517.33
8.1.100.0040.00417.34
8.1.90.0050.00317.34
8.1.80.0030.00317.32
8.1.70.0030.00317.30
8.1.60.0030.00617.46
8.1.50.0030.00617.28
8.1.40.0000.01017.31
8.1.30.0040.00417.52
8.1.20.0020.00517.52
8.1.10.0070.00017.27
8.1.00.0040.00417.20
8.0.300.0040.00419.69
8.0.290.0060.00316.63
8.0.280.0040.00418.31
8.0.270.0030.00317.17
8.0.260.0060.00017.31
8.0.250.0000.00816.80
8.0.240.0000.00716.79
8.0.230.0000.00716.67
8.0.220.0030.00416.75
8.0.210.0000.00716.75
8.0.200.0000.00716.68
8.0.190.0070.00016.82
8.0.180.0040.00416.81
8.0.170.0020.00516.66
8.0.160.0050.00316.63
8.0.150.0120.00016.76
8.0.140.0070.00016.62
8.0.130.0000.00513.18
8.0.120.0000.00816.68
8.0.110.0040.00416.65
8.0.100.0000.00716.79
8.0.90.0000.00916.70
8.0.80.0060.01016.73
8.0.70.0040.00416.71
8.0.60.0000.00716.80
8.0.50.0080.00016.81
8.0.30.0070.00916.96
8.0.20.0130.00717.40
8.0.10.0000.00716.75
8.0.00.0150.00316.75
7.4.330.0050.00015.08
7.4.320.0000.00616.36
7.4.300.0030.00316.33
7.4.290.0000.00716.46
7.4.280.0030.00516.26
7.4.270.0030.00316.49
7.4.260.0000.00816.44
7.4.250.0000.00716.32
7.4.240.0050.00516.36
7.4.230.0030.00316.53
7.4.220.0100.01016.31
7.4.210.0090.00616.48
7.4.200.0000.00716.37
7.4.160.0060.01216.10
7.4.150.0100.00617.40
7.4.140.0120.00617.86
7.4.130.0070.01016.45
7.4.120.0080.00916.27
7.4.110.0060.01216.31
7.4.100.0180.00616.45
7.4.90.0090.00916.42
7.4.80.0130.01019.39
7.4.70.0130.01016.25
7.4.60.0030.01416.24
7.4.50.0030.01016.06
7.4.40.0060.01016.23
7.4.30.0030.01416.35
7.4.00.0050.01214.97
7.3.330.0030.00312.97
7.3.320.0050.00012.97
7.3.310.0000.00716.14
7.3.300.0000.00716.09
7.3.290.0100.00716.15
7.3.280.0100.00816.07
7.3.270.0070.01117.40
7.3.260.0140.00316.27
7.3.250.0150.00416.16
7.3.240.0110.01116.30
7.3.230.0100.00716.39
7.3.210.0120.00416.36
7.3.200.0100.00716.05
7.3.190.0090.00616.39
7.3.180.0150.00616.39
7.3.170.0090.00916.21
7.3.160.0170.00016.10
7.3.120.0070.01114.91
7.3.110.0030.00714.92
7.3.100.0040.01114.69
7.3.90.0030.00714.75
7.3.80.0070.00314.76
7.3.70.0140.00314.73
7.3.60.0100.00714.73
7.3.50.0000.01314.78
7.3.40.0040.01214.72
7.3.30.0060.00914.55
7.3.20.0060.00616.44
7.3.10.0040.00916.41
7.3.00.0040.01016.30
7.2.330.0090.00916.46
7.2.320.0040.01616.43
7.2.310.0190.00016.25
7.2.300.0210.00016.39
7.2.290.0070.01016.43
7.2.250.0100.01014.96
7.2.240.0030.01014.88
7.2.230.0140.00314.66
7.2.220.0130.00314.77
7.2.210.0100.00314.96
7.2.200.0070.01014.74
7.2.190.0040.01414.63
7.2.180.0030.01014.68
7.2.170.0060.00914.87
7.2.130.0060.00616.64
7.2.120.0030.01216.61
7.2.110.0070.00416.56
7.2.100.0060.00616.60
7.2.90.0030.00616.69
7.2.80.0050.00816.58
7.2.70.0100.00616.36
7.2.60.0080.00316.53
7.2.50.0040.00516.83
7.2.40.0030.00716.53
7.2.30.0050.00516.76
7.2.20.0030.00916.68
7.2.10.0060.00616.72
7.2.00.0090.00616.68
7.1.330.0070.00715.71
7.1.320.0000.01015.76
7.1.310.0040.01115.74
7.1.300.0000.01215.66
7.1.290.0110.00015.47
7.1.280.0070.00715.74
7.1.270.0100.00315.57
7.1.260.0070.00715.78
7.1.250.0100.00015.64
7.1.200.0150.00715.75
7.1.70.0030.00317.03
7.1.60.0030.00917.18
7.1.50.0220.01334.68
7.1.00.0070.07322.27
7.0.200.0170.00414.94
7.0.100.0130.05719.95
7.0.90.0200.04720.02
7.0.80.0130.05319.90
7.0.70.0130.06319.91
7.0.60.0170.05019.98
7.0.50.0170.05320.36
7.0.40.0470.06020.45
7.0.30.0400.06720.35
7.0.20.0330.06320.23
7.0.10.0400.05320.41
7.0.00.0430.05320.20
5.6.250.0130.05320.66
5.6.240.0070.06320.82
5.6.230.0030.06320.75
5.6.220.0200.05020.74
5.6.210.0030.06720.70
5.6.200.0130.06321.13
5.6.190.0130.05721.13
5.6.180.0200.05021.07
5.6.170.0200.05021.10
5.6.160.0100.08321.07
5.6.150.0170.05321.07
5.6.140.0170.05021.16
5.6.130.0030.07021.09
5.6.120.0130.06021.16
5.6.110.0130.05721.19
5.6.100.0230.06721.04
5.6.90.0070.06321.18
5.6.80.0100.06020.52
5.6.70.0130.05320.46
5.6.60.0130.06320.51
5.6.50.0200.06020.46
5.6.40.0200.04320.44
5.6.30.0070.05720.50
5.6.20.0100.05320.43
5.6.10.0130.05020.34
5.6.00.0130.06020.39

preferences:
62.66 ms | 401 KiB | 5 Q