Tag Archives: طراحی سایت php

Investigating Strings in PHP

Investigating Strings in PHP
You do not always know everything about the data you are working with. Strings can arrive from many sources, including user input, databases, files, and web pages. Before you begin to work with data from an external source, you often will need to find out more about the data. PHP provides many functions that enable you to acquire information about strings.

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php Data Types

Data Types

Different types of data take up different amounts of memory and may be treated differently when they are manipulated in a script. Some programming languages therefore demand that the programmer declare in advance which type of data a variable will contain. By contrast, PHP is loosely typed, meaning that it will determine the data type at the time data is assigned to each variable. Continue reading