Using php variable in jQuery Script -


i trying code work cannot figure out how make work correctly. think close though. code works fine on page:

var entryid = $(this).attr('id');      if ("<?php echo $locations[2]['floor']; ?>" == 'firstfloor' ) {         $("#drawtable").attr("style", "background:url(\'images/firstfloor.jpg\') 50% / 100% no-repeat;");     }     else if ("<?php echo $locations[2]['floor']; ?>" == 'secondfloor' ) {         $("#drawtable").attr("style", "background:url(\'images/secondfloor.jpg\') 50% / 100% no-repeat;");     }

i trying make array changeable using entryid instead of number '2'. not think concatenating correctly below. if can appreciated! thank you

var entryid = $(this).attr('id');      if ("<?php echo $locations . "[";?>" +entryid+ "<?php echo "]['floor']"; ?>" == 'firstfloor' ) {         $("#drawtable").attr("style", "background:url(\'images/firstfloor.jpg\') 50% / 100% no-repeat;");     }     else if ("<?php echo $locations . "[";?>" +entryid+ "<?php echo "]['floor']"; ?>" == 'secondfloor' ) {         $("#drawtable").attr("style", "background:url(\'images/secondfloor.jpg\') 50% / 100% no-repeat;");     }

then thing can't php ran on server , javascript has started work way later after dom ready. so, not possible such way. instead can store1 array in js variable like: 

var entryid = $(this).attr('id'); var locations = <?php echo json_encode($locations); ?>; // suppose array. var floor = locations[entryid]['floor']; // <----target floor here  if (floor === 'firstfloor') {   $("#drawtable").css("background", "('images/firstfloor.jpg') 50% 100% no-repeat;"); } else if (floor === 'secondfloor') {   $("#drawtable").css("background", "url('images/secondfloor.jpg') 50% 100% no-repeat;"); }

and instead of attr such way better use css or event better addclass.

1. - js has written on php page.


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