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PHP Manual

json_decode

(PHP 5 >= 5.2.0, PECL json:1.2.0-1.2.1)

json_decode — Decodes a JSON string

說明

mixed json_decode ( string $json [, bool $assoc ] )

Takes a JSON encoded string and converts it into a PHP variable.

參數

json

The json string being decoded.

assoc

When TRUE, returned objects will be converted into associative arrays.

Return值

Returns an object or if the optional assoc parameter is TRUE, an associative array is instead returned.

範例

Example#1 json_decode() examples

<?php
$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';

var_dump(json_decode($json));
var_dump(json_decode($json, true));

?>

上例將輸出：

object(stdClass)#1 (5) {
    ["a"] => int(1)
    ["b"] => int(2)
    ["c"] => int(3)
    ["d"] => int(4)
    ["e"] => int(5)
}

array(5) {
    ["a"] => int(1)
    ["b"] => int(2)
    ["c"] => int(3)
    ["d"] => int(4)
    ["e"] => int(5)
}

註釋

Caution

This function will return false if the JSON encoded data is deeper than 127 elements.

更新日誌

版本 說明
5.2.3 The nesting limit was increased from 20 to 128

參見

JSON
PHP Manual