php string delimiter

(1) What is the difference between single and double quotation marks?1, can be used to escape the range, the single quotation mark can only escape the single quotation mark \ ', double quotation marks except single quotation mark cannot escape,

Why to use delimiters: because PHP is a web programming language, in the programming process will inevitably encounter with Echo to output a large segment of HTML and JavaScript script, if the traditional output method-by string output, There must

(1) What is the difference between single and double quotation marks? 1, can be used to escape the range, the single quotation mark can only escape the single quotation mark \ ', double quotation marks except single quotation mark cannot escape,

If you use the traditional output method--by string output--there must be a large number of escape characters to escape the special characters in the string, such as quotes, so that there is no syntax error. If it's one or two, you can tolerate it,

The end identifier must start at the first column of the row. Similarly, identifiers must follow the naming conventions of any other tag in PHP: They can only contain alphanumeric underscores, and must begin with an underscore or non-numeric

The end identifier must start at the first column of the row. Similarly, identifiers must follow the naming conventions of any other tag in PHP: They can only contain alphanumeric underscores, and must begin with an underscore or non-numeric

PHP is a web programming language, in the programming process will inevitably encounter the use of echo to output a large segment of HTML and JavaScript script, if the traditional output method-by the string output, there must be a large number of

PHP is a web programming language, in the programming process will inevitably encounter with Echo to output a large segment of HTML and JavaScript script, if the traditional output method-by string output,There must be a large number of escapes to

PHP delimiters PHP is a Web programming language. In the programming process, it is inevitable that echo will be used to output large html and javascript scripts. If the traditional output method is used-output by string, there must be a large

PHP is a web programming language, in the programming process will inevitably encounter the use of echo to output a large segment of HTML and JavaScript script, if the traditional output method-by the string output, there must be a large number of