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up vote 1 down vote favorite

I have an associative array tempArr which I need to convert to JSON and write into a json file:

$tempArr = array('one' => $var1, 'two'=> $var2, 'three'=>$var3);
$fp = fopen('myFile.json', 'w');
fwrite($fp, json_encode($tempArr));
fclose($fp);

But this code shows a warning where it says that json_encode(): recursion detected. What am I doing wrong?

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Your code works fine for me. I think the variable values are relevant here. –  Amal Murali Sep 13 '13 at 12:34
    
I'd begin by looking what is in $var1, $var2, and $var3. Try replacing one a time until you know which one is the problem, then print_r the contents of that variable and post here –  Jamie Bicknell Sep 13 '13 at 12:35

1 Answer 1

up vote 1 down vote

Your error probably boils down to:

$a = array(&$a);
json_encode($a);

See: http://codepad.org/8dYy8Y3C

so you have a reference cycle somewhere in $var1, $var2, or $var3. Your mission: search and destroy it! As Jamie Bicknell commented: remove one at a time to see which one.

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