How to convert array to json in php

How to convert an array into json in php

In php, you can convert an array into json by using the "json_encode()" function

json_encode function introduction

json_encode - JSON encoding of variables

json_encode ( mixed $value [, int $options = 0 [, int $depth = 512 ]] ) : string

Returns a string, including value Representation of the value in JSON form.

The encoding is affected by the options parameter passed in. In addition, the encoding of floating point values ​​depends on serialize_precision.

json_encode parameter

value:

The value to be encoded can be any data type except the resource type.

The encoding of all string data must be UTF-8.

options:

Binary mask consisting of the following constants: JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_NUMERIC_CHECK, JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES, JSON_FORCE_OBJECT, JSON_PRESERVE_ZERO_FRACTION, JSON _UNESCAPED_UNICODE, JSON_PARTIAL_OUTPUT_ON_ERROR.

depth:

Set the maximum depth. Must be greater than 0.

json_encode return value

Returns a JSON encoded string on success or FALSE on failure.

json_encode example

<?php
   $arr = array(&#39;a&#39; => 1, &#39;b&#39; => 2, &#39;c&#39; => 3, &#39;d&#39; => 4, &#39;e&#39; => 5);
   echo json_encode($arr);?>

Print result:

{"a":1,"b":2,"c":3,"d":4,"e":5}

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