How to convert objects to characters in php

php method to convert objects to characters: 1. Create a php sample file; 2. Define an object example; 3. Pass "json_encode($object);" or "json_encode($object, JSON_FORCE_OBJECT); " statement can convert an object into a json string.

The operating environment of this tutorial: Windows 10 system, PHP version 8.1, DELL G3 computer

How to convert objects to characters in php?

PHP converts an object into a json string instead of an array

Method:

$json_string = json_encode($object, JSON_FORCE_OBJECT);

Difference:

json_encode($object);
//结果:"[{"aa":"bb","cc":"dd"}]"
json_encode($object，JSON_FORCE_OBJECT);
//结果："{"aa":"bb","cc":"dd"}"

Related introduction ：

json_encode

(PHP 5 >= 5.2.0, PHP 7, PHP 8, PECL json >= 1.2.0)

json_encode — JSON encoding of variables

Description

json_encode(mixed $value, int $flags = 0, int $depth = 512): string|false

Returns a string containing the representation of value in JSON form. If the argument is an array or object, it is serialized recursively.

If the value to be serialized is an object, only publicly visible properties are included by default, or the class can implement JsonSerializable to control how its value is serialized to JSON.

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

Parameters

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.

Note:

PHP implements a superset of JSON, refer to » RFC 7159.

flags

由以下常量组成的二进制掩码： 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。

depth

Settings maximum depth. Must be greater than 0.

Return value

Returns a JSON encoded string on success or returns false on failure.

Recommended learning: "PHP Video Tutorial"

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