XMLHttpRequest: Difference between revisions

The concept behind the ''XMLHttpRequest'' class was conceived in 2000 by the developers of [[Microsoft Outlook]] -- – available on the [[Windows 2000]] operating system.<ref name="ALEXHOPMANN_quote1">{{cite web

The ''XMLHttpRequest'' lifecycle progresses through several stages --– from 0 to 4. Stage 0 is before the <code>open()</code> method is invoked, and stage 4 is when the text string has arrived.<ref name="adp-26">{{cite book

}}</ref> Because the PHP engine is an [[Interpreter (computing)|interpreter]] --– interpreting program [[statement (computer science)|statements]] as they are read --– there are programming limitations{{efn|Whereas PHP is a rich language and interfaces well with certain [[databases]], it supports only a subset of [[Container (abstract data type)|container types]] and lacks [[declarative language]] constructs.}} and performance costs.{{efn|An interpreter executes each programming statement; however, a compiled program has each [[machine instruction]] ready for the [[CPU]].}} Nonetheless, its simplicity may place the ''XMLHttpRequest'' set of files in the same working directory --– probably <code>/var/www/html</code>.

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