How to transcode an array in php

The way PHP transcodes an array is to use the mb_convert_encoding function to convert the character encoding, such as [mb_convert_encoding($value, "UTF-8", "GB2312");], which means converting GB2312 encoding to UTF -8.

The operating environment of this article: windows10 system, php 7.3, thinkpad t480 computer.

Two specific codes for transcoding arrays are shared below for your reference!

Introduction to the functions used:

array_map() function applies the user-defined function to each value in the array, and returns the user-defined function with new Array of values.

Function syntax:

array_map(myfunction,array1,array2,array3...)

Parameters:

• myfunction The name of the user-defined function, or null.

• array1 Specifies the array.

• array2 Specifies the array.

• #array3 Specifies the array.

The mb_convert_encoding function is used to convert character encoding.

Description:

mb_convert_encoding ( array|string $string , string $to_encoding , array|string|null $from_encoding = null ) : array|string|false

Convert the character encoding of string type str from optional from_encoding to to_encoding. When the parameter string is an array, all its string values ​​will be converted recursively.

Convert GB2312 encoding to UTF-8

The specific code is as follows:

//更改编码为utf8
protected function array2utf8($array){
	$array = array_map(function($value){
		if(is_array($value)){
			return $this->array2utf8($value);
		} else{
			return mb_convert_encoding($value, "UTF-8", "GB2312");
		}
	}
	, $array);
	return $array;
}
　　

Convert UTF-8 encoding to GB2312

The specific code is as follows:

protected function array2gbk($array){
	$array = array_map(function($value){
		if(is_array($value)){
			return $this->array2gbk($value);
		} else{
			return mb_convert_encoding($value, "GB2312", "UTF-8");
		}
	}
	, $array);
	return $array;
}

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