php - Ajax request to self-page not working -

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i have php page follow javascript code in it:

$("#savebutton").click(function() {                 hlalert('saving...');                 $.getjson("<?php echo $php_self; ?>", {                     ajax: 1,                     classes: $("#alllessons").serialize()                 }, function(output) {                     if (output.status == false) { hlalert(output.message); }                     else { hlalert('saved!.'); }                 });             });

for whatever real not work. javascript before , after exectute these seemingly not. not failed status returned.

hlalert() function displays twitter alert message.

at top of php page have code

<?php     if ($_get['ajax'] == 1) {         // parse ajax values         // output json , die     }     // regular page code

i tried changing names of passed values in getjson call, doesn't anything. i've tried putting page getjson calls different file , doesn't either.

is there fundamentally wrong getjson code cannot see? allowed make $.ajax calls self-page?

thanks

do mean $_server['php_self'] ? not sure if there $php_self.


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