How to convert php object array to string

PHP Convert object array to string

In PHP development, it is often necessary to convert object array to string for storage, transmission or other occasions where strings are needed. This article will introduce several methods of converting PHP object arrays to strings.

Method 1: json_encode function

The json_encode function can convert an object array into a string in JSON format. Note: This function can only handle values ​​of string, integer, floating point, Boolean and null types, but cannot handle objects or functions.

Sample code:

<?php
$arr = array(&#39;name&#39; => '张三', 'age' => 18, 'gender' => '男');
echo json_encode($arr); // 输出 {"name":"张三","age":18,"gender":"男"}

// 输出结果可以使用 JSON_UNESCAPED_UNICODE 参数避免中文编码问题
echo json_encode($arr, JSON_UNESCAPED_UNICODE); // 输出 {"name":"张三","age":18,"gender":"男"}
?>

Method 2: serialize function

The serialize function can convert an object array into a string, and can handle data types such as objects and functions.

Sample code:

<?php
$arr = array(&#39;name&#39; => '张三', 'age' => 18, 'gender' => '男');
echo serialize($arr); // 输出 a:3:{s:4:"name";s:6:"张三";s:3:"age";i:18;s:6:"gender";s:3:"男";}
?>

Method 3: implode function

implode function can connect the elements in the array into a string, and can convert the object array into a string.

Sample code:

<?php
$arr = array(&#39;name&#39; => '张三', 'age' => 18, 'gender' => '男');
$str = implode(',', $arr);
echo $str; // 输出 张三,18,男
?>

Method 4: foreach loop

You can use the foreach loop to convert an object array into a string.

Sample code:

<?php
$arr = array(&#39;name&#39; => '张三', 'age' => 18, 'gender' => '男');
$str = '';
foreach($arr as $key=>$value){
    $str .= "{$key}:{$value}|";
}
echo rtrim($str, '|'); // 输出 name:张三|age:18|gender:男
?>

Summary

This article introduces several methods to convert PHP object arrays into strings, including json_encode, serialize, implode and foreach loops, etc. Different methods can be used flexibly according to actual scenarios to meet development needs.

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