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| https://pusher.com/ | — | miscellaneous | 735 | |
| https://puppet.com/ | — | miscellaneous | 532 | |
| https://projects.invisionapp.com/d/main#/projects | — | miscellaneous | 1616 | |
| https://projects.invisionapp.com/d/main#/learn/hero | — | tutorialslearn | 1246 | |
| https://projects.gnome.org/straw/ | — | miscellaneous | 597 | |
| https://prepros.io/ | — | miscellaneous | 882 | |
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| https://placehold.it/ | — | miscellaneous | 699 | |
| https://pixelbuddha.net/freebies | — | miscellaneous | 1484 | |
| https://pixabay.com/ | — | miscellaneous | 540 | |
| https://pingendo.com/new | — | miscellaneous | 537 | |
| https://pingendo.com/learn.html | — | frontendtutorialslearnhtml | 1113 | |
| https://phpunit.de/manual/current/en/appendixes.assertions.html | — | phpfrontendhtml | 2012 | |
| https://phpunit.de/getting-started.html | — | phpfrontendhtml | 1287 | |
| https://phpunit.de/ | — | php | 817 | |
| https://phpocean.com/tutorials/computer-skills/easy-guide-on-how-set-your-workstation-on-ubuntu-17-04/60 | — | tutorialshowtophpcourses | 546 | |
| https://phpocean.com/index.php?url=tutorials/back-end/composer-your-first-class/52 | — | phptutorialscourses | 531 | |
| https://phpocean.com/blog/article/never-start-coding-a-website-with-code/65 | — | php | 542 | |
| https://phpmap.co/ | — | php | 663 | |
| https://phpdoc.org/ | — | php | 1371 | |
| https://phpacademy.org/ | — | php | 554 | |