php - Error with strings in JavaScript -

i have rare problem variables between php , javascript.

this example:

<?php $test = "123"; ?>  $(document).ready(function(){         alert('.$test.');  }); 

works fine, if put $test = "hello"; doesn't works fine. works in js when put numbers.

the php variable server side variable. javascript accessing variable on client. in order javascript need like:

<?php $test = "123"; ?> $(document).ready(function(){     alert('<?php echo($test); ?>'); }); 

that should it!

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alternate approach

the alternative set variable in javascript have value on client. looks like:

<?php $test = "123"; ?> var $test = <?php echo($test); ?>; $(document).ready(function(){     alert('.$test.'); }); 

the nice part can use "$test" anywhere need without worrying client versus server.