1. The concept of arrays
An array is a named range that is used to store a series of variable values.
Each array element has an associated index (also a keyword) that can be used to access elements.
PHP allows you to use numbers or strings evenly
The difference between single quotes and double quotes in php is very important in programming languages, both single quotes and double quotes. PHP quotes are easier to use than ASP quotes. in ASP, to substitute data into a variable, you must use
The difference between single quotation marks and double quotes in PHP
In a programming language, both single and double quotes are important, as is the case in the PHP language. Compared to ASP, PHP quotation marks better use, in ASP, to put the
basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Gets the value of the array Array_keys ($arr), gets the key name of the array array_flip ($arr), and the values in the array are exchanged with the key
The difference between single and double quotation marks in PHP. 1. define a string in PHP. The definition of a string can be single quotation marks or double quotation marks. However, the same single or double quotation marks must be used to define
Three ways to get post data from PHP
PHP image plus watermark source code
One of the simplest examples of Php+ajax+json
PHP Chinese Pinyin Source code
PHP iterates through directories, generates MD5 values for each file in the directory, and writes
: This article mainly introduces php programming notes. if you are interested in PHP tutorials, please refer to them. Three methods for php to obtain POST data
Php image watermarking source code
Php + ajax + json is the simplest example.
Php Chinese
Let's talk about the difference between single and double quotation marks in PHP and the difference between php double quotation marks. Let's talk about the difference between single and double quotation marks in PHP. in php, you can use single
Php programming notes-three methods for obtaining POST data from small_123 php
Php image watermarking source code
Php + ajax + json is the simplest example.
Php Chinese character to pinyin source code
Php traverses the Directory, generates the md5
1. Define String
In PHP, a string can be defined using single quotes or double quotes. However, you must use the same single or double quotes to define the string, such as: ' Hello ' and ' hello ' are illegal string definitions.
When you define
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