| OS | Man Page | Section | Hits |
|---|---|---|---|
| posix | isalpha | 3p | 572 |
| linux | isalpha | 3 | 518 |
| linux | iswalpha | 3 | 468 |
| freebsd | isalpha | 3 | 443 |
| bsd | isalpha | 3 | 420 |
| mojave | isalpha | 3 | 415 |
| php | ctype_alpha | 3 | 404 |
| redhat | isalpha | 3 | 404 |
| netbsd | isalpha | 3 | 403 |
| xfree86 | glalphafunc | 3g | 401 |
| osx | isalpha | 3 | 400 |
| redhat | iswalpha | 3 | 397 |
| suse | isalpha | 3 | 393 |
| opensolaris | iswalpha | 3c | 385 |
| debian | iswalpha | 3 | 374 |
| php | imagealphablending | 3 | 365 |
| linux | alphasort | 3 | 362 |
| opensolaris | mlib_imagemulalpha | 3mlib | 356 |
| centos | iswalpha | 3 | 355 |
| redhat | glalphafunc | 3g | 353 |
| suse | glalphafunc | 3g | 348 |
| opensolaris | isalpha | 3c | 348 |
| debian | px_put_data_alpha | 3 | 341 |
| opendarwin | iswalpha | 3 | 339 |
| centos | isalpha | 3 | 337 |
| x11r4 | isalpha | 3 | 334 |
| sunos | isalpha | 3c | 332 |
| x11r4 | iswalpha | 3 | 325 |
| debian | prelude.isalpha | 3kaya | 320 |
| sunos | iswalpha | 3c | 319 |
| mojave | tcl_unicharisalpha | 3 | 319 |
| hpux | isalpha | 3c | 317 |
| opendarwin | isalpha | 3 | 317 |
| sunos | mlib_imagemulalpha_inp | 3mlib | 313 |
| debian | px_get_data_alpha | 3 | 312 |
| opensolaris | mlib_imagedivalpha | 3mlib | 308 |
| v7 | isalpha | 3 | 307 |
| xfree86 | isalpha | 3 | 306 |
| php | imagecolorallocatealpha | 3 | 306 |
| v7 | iswalpha | 3 | 305 |
| debian | isalpha | 3 | 305 |
| plan9 | iswalpha | 3 | 304 |
| php | iswalpha | 3 | 304 |
| posix | iswalpha | 3p | 302 |
| xfree86 | iswalpha | 3 | 296 |
| opensolaris | mlib_imagedivalpha_inp | 3mlib | 296 |
| opensolaris | mlib_imagemulalpha_inp | 3mlib | 293 |
| bsd | iswalpha | 3 | 290 |
| freebsd | iswalpha | 3 | 289 |
| php | imagesavealpha | 3 | 289 |