note 105892 added to function.json-decode

From: Date: Fri, 23 Sep 2011 15:49:11 +0000
Subject: note 105892 added to function.json-decode
Groups: php.notes 
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Consider that JSON can differ between int and string. So <?php var_dump(json_decode('{"foo": 12}')); // array(1) { ["foo"]=> int(12) } var_dump(json_decode('{"foo": "12"}')); // array(1) { ["foo"]=> string(12) } ?> Numbers that cannot be handled by integer seems to become float casted. This can be a problem if you transfer big numbers like facebook ids over JSON. Either you avoid numbers by cast everything to string before JSON.stringify or you have to use number_format if the value bacome a float value. <?php // test $x = json_decode('{"foo": 123456789012345}'); echo sprintf('%1$f', $x->foo).PHP_EOL; echo sprintf('%1$u', $x->foo).PHP_EOL; echo sprintf('%1$s', $x->foo).PHP_EOL; echo strval($x->foo).PHP_EOL; echo (string) $x->foo.PHP_EOL; echo number_format($x->foo, 0, '', '').PHP_EOL; // output 123456789012345.000000 // printf %f 2249056121 // printf %u 1.2345678901234E+14 // printf %s 1.2345678901234E+14 // strval() 1.2345678901234E+14 // cast (string) 2249056121 // cast (int) 123456789012345 // number_format() ?> ---- Server IP: 69.147.83.197 Probable Submitter: 217.9.63.50 ---- Manual Page -- http://www.php.net/manual/en/function.json-decode.php Edit -- https://master.php.net/note/edit/105892 Del: integrated -- https://master.php.net/note/delete/105892/integrated Del: useless -- https://master.php.net/note/delete/105892/useless Del: bad code -- https://master.php.net/note/delete/105892/bad+code Del: spam -- https://master.php.net/note/delete/105892/spam Del: non-english -- https://master.php.net/note/delete/105892/non-english Del: in docs -- https://master.php.net/note/delete/105892/in+docs Del: other reasons-- https://master.php.net/note/delete/105892 Reject -- https://master.php.net/note/reject/105892 Search -- https://master.php.net/manage/user-notes.php

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