| 1. | .ph | Perl header file ◊ Optimized .goh include file (Geoworks) ◊ Phrase-table (Microsoft C/C++) ◊ Temporary file generated by Microsoft Help Compiler |
| 2. | .phd | PolyHedra Database |
| 3. | .phm | Phone book (DN - Lync) |
| 4. | .phn | Phone list (UltraFax - QmodemPro) |
| 5. | .pho | Phone database (Metz Phone for Windows) |
| 6. | .php | HTML page that includes a PHP script |
| 7. | .php3 | HTML page that includes a PHP script |
| 8. | .phr | Phrases (LocoScript) |
| 9. | .phtml | HTML page that includes a PHP script |
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