Full-Demon Posted July 8, 2007 Share Posted July 8, 2007 Hi, I have a small problem, I have a variable in PHP which I would like to pass to JS. However, a form won't work, because JS is initialised between the <head> tag's. Echo a variable with PHP in JS doesn't work, because the JS file in external. And passing var's via the URL won't work because the php file is called with a virtual URL. I hoped something like this would work: <script type="text/javascript" src="javascript.js?var=thisismyvar"></script> But when I call: document.location.href It returns the URL which is displayed in the address bar for the php file! So not for the JS file. However, I saw some scripts that worked with the above example (it works in my website) but I cant get it to work, very weird written: var Scriptaculous = { Version: '1.5.1', require: function(libraryName) { // inserting via DOM fails in Safari 2.0, so brute force approach document.write('<script type="text/javascript" src="'+libraryName+'"></script>'); }, load: function() { if((typeof Prototype=='undefined') || parseFloat(Prototype.Version.split(".")[0] + "." + Prototype.Version.split(".")[1]) < 1.4) throw("script.aculo.us requires the Prototype JavaScript framework >= 1.4.0"); $A(document.getElementsByTagName("script")).findAll( function(s) { return (s.src && s.src.match(/scriptaculous\.js(\?.*)?$/)) }).each( function(s) { var path = s.src.replace(/scriptaculous\.js(\?.*)?$/,''); var includes = s.src.match(/\?.*load=([a-z,]*)/); (includes ? includes[1] : 'builder,effects,dragdrop,controls,slider').split(',').each( function(include) { Scriptaculous.require(path+include+'.js') }); }); } } Scriptaculous.load(); This script gets called by: <script type="text/javascript" src="scriptaculous.js?load=effects"></script> How can I fix this? Thanks, FD Quote Link to comment https://forums.phpfreaks.com/topic/58921-phpjs-passing-vars-in-from-php-to-js/ Share on other sites More sharing options...
RichardRotterdam Posted July 8, 2007 Share Posted July 8, 2007 Echo a variable with PHP in JS doesn't work that does work. this works fine with me <script> var phpVar="<?php echo($phpVar);?>"; </script> why not paste your js in your head? otherwise you could use ajax to get the php var Quote Link to comment https://forums.phpfreaks.com/topic/58921-phpjs-passing-vars-in-from-php-to-js/#findComment-292402 Share on other sites More sharing options...
Full-Demon Posted July 8, 2007 Author Share Posted July 8, 2007 It doesnt work because the JS is external. And pasting isnt really an option, as I include the headers different on each page...and its a very long javascript file. There must be a way like the scriptaculous script does it, because that one works...but Im not a master in JS (I hate the language, because its so messy), so I cant find out what part actually retrieves the value... Thanks for the reply though FD Quote Link to comment https://forums.phpfreaks.com/topic/58921-phpjs-passing-vars-in-from-php-to-js/#findComment-292534 Share on other sites More sharing options...
mainewoods Posted July 9, 2007 Share Posted July 9, 2007 you can use inline js and external js together: <script> var phpVar="<?php echo($phpVar);?>"; </script> <script src="external file url"></script> the js variable recieved from php, phpVar, will be available to the js code in the external js file. As well, leaving your external file with just a .js extension and no '?' will cause the external file to be cached better and load faster. Quote Link to comment https://forums.phpfreaks.com/topic/58921-phpjs-passing-vars-in-from-php-to-js/#findComment-292893 Share on other sites More sharing options...
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