single quotes, double quotes, and escape characters in PHP
http://blog.csdn.net/river131/article/details/9186203Category: PHP notes 2013-06-27 11:37 875 people read Comments (0) Favorites report escape characters PHP
PHP single and double quotes
PHP single quotes and double quotes can modify string data. if the modified string contains a variable (for example, $ name), the biggest difference is that double quotes replace the variable value, the single quotation mark will output it as a
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
Basic Usage
In conclusion:
Single quotes in any case represent only the characters within the quotation marks. In other words, the contents of single quotes do not make the substitution of variables and the escape of characters. In double quotes,
PHP single and double quotation marks can modify the string type of data, if the decorated string contains variables (example $name), The biggest difference is: double quotation marks will replace the value of the variable, and the single quotation
In PHP, a string is usually defined in a pair of quotation marks.Follow these steps: The code is as follows:Copy code $ Out = str_replace (array ('RN ', 'R', 'n'), '', $ out); PHP provides three methods to define strings: single quotes, double
Phpjsonp single quotes and jsonp single quotes. Phpjsonp single quotation mark escape: callbackname (jsonstring) is generally used in php jsonp output. if the jsonstring in the middle contains single quotation marks, this output will be escaped by
First of all, in the bash script, there are three kinds of quotes
1. Single quotes '2. Double quotes "3. Inverted quotes '
Single quotation markThe two string enclosed in single quotes is an ordinary string that retains its original literal
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
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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