How to force an object to an array in php

php method to force an object to an array: 1. Convert via the defined "object_array" method; 2. Convert via the "json_decode" method; 3. Convert via the defined "object2array_pre" method.

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

php object to array

1.

//PHP stdClass Object转array  
function object_array($array) {  
    if(is_object($array)) {  
        $array = (array)$array;  
    } 
    if(is_array($array)) {
        foreach($array as $key=>$value) {  
            $array[$key] = object_array($value);  
        }  
    }  
    return $array;  
}

2.

$array = json_decode(json_encode(simplexml_load_string($xmlString)),TRUE);

3.

function object2array_pre(&$object) {
    if (is_object($object)) {
        $arr = (array)($object);
    } else {
        $arr = &$object;
    }
    if (is_array($arr)) {
        foreach($arr as $varName => $varValue){
            $arr[$varName] = $this->object2array($varValue);
        }
    }
    return $arr;
}

4. If the amount of data is 10W, the execution will take 1 second, and the structure will It is more complicated and can reach 3s. The performance is too poor. You can replace it with the following:

function object2array(&$object) {
    $object =  json_decode( json_encode( $object),true);
    return  $object;
}

json_decode(json_encode($array),true)

The purpose of multi-layer array and object conversion is very simple, which is convenient for processing multi-layer numbers in WebService Conversion of groups and objects [Recommended study: "PHP Video Tutorial"]

Simple (array) and (object) can only process single-layer data. For multi-layer arrays and Object conversion does nothing.

Through json_decode(json_encode($object), the object can be converted into an array at one time, but problems will occur when encountering non-utf-8 encoded non-ascii characters in the object, such as gbk Chinese, not to mention json_encode and The performance of decode is also questionable.

The code below:

<?php
 
    function objectToArray($d) {
        if (is_object($d)) {
            // Gets the properties of the given object
            // with get_object_vars function
            $d = get_object_vars($d);
        }
 
        if (is_array($d)) {
            /*
            * Return array converted to object
            * Using __FUNCTION__ (Magic constant)
            * for recursive call
            */
            return array_map(__FUNCTION__, $d);
        }
        else {
            // Return array
            return $d;
        }
    }
 
    function arrayToObject($d) {
        if (is_array($d)) {
            /*
            * Return array converted to object
            * Using __FUNCTION__ (Magic constant)
            * for recursive call
            */
            return (object) array_map(__FUNCTION__, $d);
        }
        else {
            // Return object
            return $d;
        }
    }
 
    // Useage:
    // Create new stdClass Object     
        $init = new stdClass;
    // Add some test data
    $init->foo = "Test data";
    $init->bar = new stdClass;
    $init->bar->baaz = "Testing";
    $init->bar->fooz = new stdClass;
    $init->bar->fooz->baz = "Testing again";
    $init->foox = "Just test";
 
    // Convert array to object and then object back to array
    $array = objectToArray($init);
    $object = arrayToObject($array);
 
    // Print objects and array
    print_r($init);
    echo "\n";
    print_r($array);
    echo "\n";
    print_r($object);
?>

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