How to convert associative array to json data in php

In PHP, you can use the json_encode() function to convert associative arrays into json data. This function can JSON encode PHP variables (arrays, objects, etc.) and convert them into json format data; Syntax "json_encode($array)".

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

In PHP, you can use the json_encode() function To convert associative array to json data.

<?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);
?>

Output result:

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

Description:

json_encode - JSON encoding of variables.

json_encode($value, $options, $depth)

Parameters:

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

• options: Binary mask consisting of the following constants

• JSON_FORCE_OBJECT, JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_INVALID_UTF8_IGNORE, JSON_INVALID_UTF8_SUBSTITUTE , JSON_NUMERIC_CHECK, JSON_PARTIAL_OUTPUT_ON_ERROR, JSON_PRESERVE_ZERO_FRACTION, JSON_PRETTY_PRINT, JSON_UNESCAPED_LINE_TERMINATORS, JSON_UNESCAPED_SLASHES, JSON_UNESCAPED_UNICODE, JSON_THROW_ON_ERROR. For details about JSON constants, please refer to the JSON Constants page.

• depth: Set the maximum depth. Must be greater than 0.

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