There aren't very many PHP job offers in Aragon; the current count is just 8. Have you tried neighbouring regions? Maybe you're interested in either Web Development or PHP Frameworks job offers, which constitute two of the most common subcategories in this field. Topics like MySQL, Web Development, and WordPress come up a lot in job ads in this area.
2 vacant positions in this area are reserved for junior staff, which is exciting for candidates just starting, or changing their careers. Internships in this area are uncommon on Jobspotting. Among the host of companies on Jobspotting, there aren't currently any startups hiring for PHP. Why not have a look at vacant positions in another country to compare and contrast opportunities. Just use the Explore tab.