| OS | Man Page | Section | Hits |
|---|---|---|---|
| opensolaris | pcreapi | 3 | 100 |
| linux | pcreapi | 3 | 95 |
| x11r4 | pcreapi | 3 | 89 |
| php | pcreapi | 3 | 65 |
| centos | pcreapi | 3 | 52 |
| debian | pcreapi | 3 | 51 |
| osx | pcreapi | 3 | 49 |
| mojave | pcreapi | 3 | 48 |
| posix | pcreapi | 3 | 45 |
| suse | pcreapi | 3 | 40 |
| hpux | pcreapi | 3 | 37 |
| ultrix | pcreapi | 3 | 36 |
| xfree86 | pcreapi | 3 | 36 |
| v7 | pcreapi | 3 | 35 |
| plan9 | pcreapi | 3 | 25 |