Regular expression visualizer using railroad diagrams
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PHP is an open-source server-side scripting language widely used in web development. Mature and well-tested, PHP is constantly being developed to provide new features and become even more robust and flexible. Varied PHP frameworks allow developers to use powerful tools that facilitate the development process. Easy to start with but hard to master, PHP can be a beast if used properly by skilled dev
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RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp). Supports JavaScript & PHP/PCRE RegEx. Results update in real-time as you type. Roll over a match or expression for details. Validate patterns with suites of Tests. Save & share expressions with others. Use Tools to explore your results. Full RegEx Reference with help & examples. Undo & Redo with {{getCtrlKey()}}
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