Summary of references to variables in PHP and Js,json file formats

1, for PHP file, the introduction of variables in double quotation marks requires adding { Variable name } ;

. variable name or . Variable name . ;

$a = "gegweg{$demo};

$a = "Gegweg". $demo;

$a = "Gegweg". $demo." Fweffwef ";

2, for The JS file, the introduction of variables to add the + number,

Var demo;

Alert ("GEGWG" +demo); for JSON format, you only need to add the variable name after the key value:

3, Vardemo= "Nike";

var txt = ' {' Employees ': [' +

' {' firstName ': ' Bill ', ' lastName ':demo}, ' +

' {' firstName ': ' George ', ' LastName ':}, ' +

' {' firstName ': ' Thomas ', ' lastName ': ' Carter '}]} ';

4, for the front has double quotation marks, can be solved by the plus sign:

var random = Math.ceil (Math.random () *10000000);
alert (random);
var data = ' {' msg ': {"head": {"random": "' +random+ '"}, "Body": [{"type": 0, "content": {"text": "Hello, what can I do for you"}}]} ';

The above describes the PHP and Js,json file format of the reference summary of the variables, including the aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

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