How to output JavaScript with PHP

Question

I am new to PHP  I need to output the following JavaScript with PHP  This is my code    lt html gt   lt body gt   lt  php  echo   lt script type  text javascript  gt    echo  document write  Hello World      echo   lt  script gt       gt   lt  body gt   lt  html gt    But it s showing the error      Parse error  syntax error  unexpected T STRING  expecting     or     in  var www html workbench person script php on line 4   Can anyone please help  I also need some simple tutorials on how to use PHP  HTML and JavaScript for an application

User · Answer

The following solution should work quite well for what you are trying to do.

The JavaScript block is placed very late in the document so you don't have to worry about elements not existing.
You are setting a PHP variable at the top of the script and outputting just the value of the variable within the JavaScript block.

This way, you don't have to worry about escaping double-quotes or HEREDOCS (which is the recommended method if you REALLY must go there).

Javascript Embedding Example
```
<div id="helloContainer"><div>

<script type="text/javascript">
    document.getElementById('helloContainer').innerHTML = '<?= $greeting; ?>';
</script>
```

User · Answer

instead you could easily do it this way     lt html gt   lt body gt   lt script type  text javascript  gt   lt  php    myVar    hello     gt     document write   lt  php echo  myVar   gt      lt  script gt   lt  body gt

User · Answer

An easier way is to use the heredoc syntax of PHP  An example    lt  php  echo  lt  lt  lt EOF  lt script type  text javascript  gt      document write  Hello World      lt  script gt  EOF     gt

User · Answer

You are using   instead of   It is mixing up php syntax with javascript  PHP is going to print javascript with echo function  but it is taking the js codes as wrong php syntax  so try this    lt html gt   lt body gt   lt  php  echo   lt script type  text javascript  gt    echo  document write  Hello World      echo   lt  script gt       gt   lt  body gt   lt  html gt

User · Answer

Try This    lt html gt   lt body gt   lt  php  echo   lt script type  text javascript  gt    echo  document write  Hello World       echo   lt  script gt       gt   lt  body gt   lt  html gt

User · Answer

Another option is to do like this    lt html gt       lt body gt       lt  php          php code            gt       lt script type  text javascript  gt          document write  Hello World          lt  script gt       lt  php           php code          gt       lt  body gt   lt  html gt    and if you want to use PHP inside your JavaScript  do like this    lt html gt       lt body gt       lt  php          text    Hello World          gt       lt script type  text javascript  gt          document write   lt  php echo  text   gt          lt  script gt       lt  php           php code          gt       lt  body gt   lt  html gt    Hope this can help

User · Answer

You should escape the JavaScript string delimiters inside the PHP string  You re using double quotes for both PHP and JavaScript strings  Try like this instead    lt html gt   lt body gt   lt  php     Here  we use single quotes for PHP and double quotes for JavaScript echo   lt script type  text javascript  gt    echo  document write  Hello World      echo   lt  script gt       gt   lt  body gt   lt  html gt    You have to escape quotes on both JavaScript and PHP when the string delimiter are the same as the quotes   echo          escape is done using a backslash echo         Same in JavaScript   alert           escape is done using a backslash alert echo          But because it s very hard to read a string with such escape sequences  it is better to combine single with double quotes  as needed   echo      echo

User · Answer

lt  php  echo   lt script type  text javascript  gt document write   Hello world     lt  script gt      gt

User · Answer

You need to escape your quotes   You can do this   echo   lt script type   text javascript   gt      or this   echo   lt script type  text javascript  gt      or this   echo   lt script type  text javascript  gt      Or just stay out of php   lt script type  text javascript  gt

User · Answer

You need to escape the double quotes like this   echo   lt script type   text javascript   gt    echo  document write   Hello World       echo   lt  script gt      or use single quotes inside the double quotes instead  like this   echo   lt script type  text javascript  gt    echo  document write  Hello World      echo   lt  script gt      or the other way around  like this   echo   lt script type  text javascript  gt    echo  document write  Hello World      echo   lt  script gt      Also  checkout the PHP Manual for more info on Strings   Also  why would you want to print JavaScript using PHP  I feel like there s something wrong with your design

User · Answer

You want to do this    lt html gt   lt body gt   lt  php  print    lt script type  text javascript  gt  document write  Hello World     lt  script gt        gt   lt  body gt   lt  html gt

User · Answer

The error you get if because you need to escape the quotes  like other answers said    To avoid that  you can use an alternative syntax for you strings declarations  called  Heredoc   With this syntax  you can declare a long string  even containing single-quotes and or double-quotes  whithout having to escape thoses   it will make your Javascript code easier to write  modify  and understand -- which is always a good thing   As an example  your code could become     str    lt  lt  lt MY MARKER  lt script type  text javascript  gt    document write  Hello World      lt  script gt  MY MARKER   echo  str    Note that with Heredoc syntax  as with string delimited by double-quotes   variables are interpolated

[php] How to output JavaScript with PHP

Examples related to php