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CodePrimer

Search a living directory of web syntax. Pick a problem, copy a working sample, then adapt it.

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Tags basics 48 php 45 javascript 24 html 23 css 18 dom 18 forms 16 database 14 layout 8 sql 7 events 6 arrays 6 pdo 6 http 5 control-flow 5 a11y 5 security 4 responsive 3 components 3 media 3 flexbox 3 functions 2 auth 2 selectors 2

7 snippets

HTML Beginner

Radio button group

How do I let users pick only one option?

Forms html forms
HTML Beginner

Checkboxes as PHP arrays

How do I submit multiple checkboxes to PHP?

Forms html forms php
HTML Beginner

Select dropdown

How do I make a dropdown menu?

Forms html forms
HTML Beginner

Textarea multi-line input

How do I collect long comments?

Forms html forms
HTML Beginner

Date, hidden, and file inputs

What special input types should I know?

Forms html forms files
HTML Beginner

GET vs POST forms

When should a form use GET or POST?

Forms html forms http
HTML Beginner

Explicit label for= binding

How do I connect a label to an input?

Forms html a11y forms

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