How to put php inside JavaScript

Question

I ve tried  but its not working     lt  php      htmlString   testing     gt   lt html gt     lt body gt       lt script type  text javascript  gt          var htmlString  lt  php echo  htmlString    gt         alert htmlString        lt  script gt     lt  body gt   lt  html gt    Here is the tutorial that I ve used for that purpose

User · Answer

You re missing quotes around your string       var htmlString   lt  php echo  htmlString    gt

User · Answer

As others have pointed out you need the quotes  but I just want to point out that there s a shorthand method of writing this same line of code  var htmlString   lt    htmlString  gt      See you can leave out the  php echo  stuff and replace it with a simple

User · Answer

All the explanations above doesn t work if you work with  js files  If you want to parse PHP into  js files  you have to make changes on your server by modfiying the  htaccess in which the  js files reside using the following commands    lt FilesMatch     js    gt      AddHandler application x-httpd-php  js  lt  FilesMatch gt    Then  a file test js files containing the following code will execute  JS on client side with the parsed PHP on server-side    lt html gt   lt head gt   lt script gt  function myFunction       alert  Hello World        lt  script gt   lt  head gt   lt body gt   lt button onclick  myFunction    gt  lt  php echo  My button    gt  lt  button gt   lt  body gt   lt  html gt

User · Answer

Let s see both the options  1   Use PHP inside Javascript  lt script gt       lt  php  temp    hello    gt      console log   lt  php echo  temp    gt      lt  script gt   Note  File name should be in  php only  2   Use Javascript variable inside PHP  lt script gt    var res    quot success quot    lt  script gt   lt  php    echo  quot  lt script gt document writeln res   lt  script gt  quot     gt

User · Answer

Try this    lt  php  htmlString   testing     gt   lt html gt     lt body gt       lt script type  text javascript  gt             notice the quotes around the  php tag                var htmlString   lt  php echo  htmlString    gt          alert htmlString        lt  script gt     lt  body gt   lt  html gt    When you run into problems like this one  a good idea is to check your browser for JavaScript errors  Different browsers have different ways of showing this  but look for a javascript console or something like that  Also  check the source of your page as viewed by the browser   Sometimes beginners are confused about the quotes in the string  In the PHP part  you assigned  testing  to  htmlString  This puts a string value inside that variable  but the value does not have the quotes in it  They are just for the interpreter  so he knows  oh  now comes a string literal

User · Answer

you need quotes around the string in javascript  var htmlString   lt  php echo  htmlString    gt

User · Answer

The only proper way to put server side data into generated javascript code    lt  php  jsString   testing     gt   lt html gt     lt body gt       lt script type  text javascript  gt              var jsStringFromPhp  lt  php echo json encode  jsString     gt         alert jsStringFromPhp        lt  script gt     lt  body gt   lt  html gt    With simple quotes the content of your variable is not escaped against HTML and javascript  so it is vulnerable by XSS attacks     For similar reasons I recommend to use document createTextNode   instead of setting the innerHTML  Ofc  it is slower  but more secure

[php] How to put php inside JavaScript?

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