For issues relating to development using PHP, version 4.
PHP is a widely-used, general-purpose scripting language designed specifically for web development, though it has since been extended to other applications too. PHP is the most popular language for web development, powering over 20 million websites.
Useful Third-party Code and Tools
In addition to the vast functionality provided in the PHP Core and through PEAR and PECL, there are a number of noteworthy 3rd party contributions to the PHP world, some of which are listed below.
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