PHP Array_Push 不工作答案

【问题标题】：PHP Array_Push not workingPHP Array_Push 不工作
【发布时间】：2014-01-11 08:02:17
【问题描述】：

我正在尝试组织一组通过数据库查询获得的结果。这是我用来执行此操作的代码：

$time_slots = $wpdb->get_results($query);
print_r($time_slots); 
echo ("<br/><br/><br/><br/>");
/*organize slots into array*/


$openings = array(); 
foreach($time_slots as $ts)
{
    if(empty($openings))
    {
        echo("Empty Array: ");
        echo ("<br/>");
        echo ("<br/>");
        echo("Inserting: ");
        print_r($ts); 
        echo ("<br/>");
        echo ("<br/>");
        $openings[$ts->route_date] = $ts; 
        echo("contents of Opening: ");
        echo ("<br/>");
        echo ("<br/>");
        print_r($openings); 
        echo ("<br/><br/><br/><br/>");

    }
    elseif (array_key_exists($ts->route_date, $openings)) 
    {
        echo("Same Day");
        echo ("<br/>");
        echo ("<br/>");
        echo("Inserting: ");
        print_r($ts); 
        echo ("<br/>");
        echo ("<br/>");
        array_push($openings[$ts->route_date][$ts->name], $ts); 
        echo("contents of Opening: ");
        echo ("<br/>");
        echo ("<br/>");
        print_r($openings); 
        echo ("<br/><br/><br/><br/>");
    }
    else
    {
        echo("New Day : ");
        echo ("<br/>");
        echo ("<br/>");
        echo("Inserting: ");
        print_r($ts); 
        echo ("<br/>");
        echo ("<br/>");
        $openings[$ts->route_date] = $ts; 
        echo("contents of Opening: ");
        echo ("<br/>");
        echo ("<br/>");
        print_r($openings); 
        echo ("<br/><br/><br/><br/>"); 
    }
}

/*return results*/
$result['openings'] = $openings; 
$result['time'] = $time_slots;  
$result['begin'] = $begin; 
$result['end'] = $end; 
$result['query'] = $query; 
$result['type'] = "success"; 
$result = json_encode($result);
print_r($openings);

这是我print_r$ts 时单个结果的样子：

 stdClass Object ( [route_date] => 2014-01-10 [name] => 2 [openings] => 1 [appointments] => 0 )

这是一个循环的样子。你会注意到逻辑是有效的，并且一切都在它应该去的地方，但是添加 t:

> Empty Array: 

Inserting: stdClass Object ( [route_date] => 2014-01-10 [name] => 0 [openings] => 1 [appointments] => 0 ) 

contents of Opening: 

Array ( [2014-01-10] => stdClass Object ( [route_date] => 2014-01-10 [name] => 0 [openings] => 1 [appointments] => 0 ) ) 



Same Day

Inserting: stdClass Object ( [route_date] => 2014-01-10 [name] => 1 [openings] => 1 [appointments] => 0 ) 

contents of Opening: 

Array ( [2014-01-10] => stdClass Object ( [route_date] => 2014-01-10 [name] => 0 [openings] => 1 [appointments] => 0 ) ) 



Same Day

Inserting: stdClass Object ( [route_date] => 2014-01-10 [name] => 2 [openings] => 1 [appointments] => 0 ) 

contents of Opening: 

Array ( [2014-01-10] => stdClass Object ( [route_date] => 2014-01-10 [name] => 0 [openings] => 1 [appointments] => 0 ) ) 



Same Day

Inserting: stdClass Object ( [route_date] => 2014-01-10 [name] => 3 [openings] => 1 [appointments] => 0 ) 

contents of Opening: 

Array ( [2014-01-10] => stdClass Object ( [route_date] => 2014-01-10 [name] => 0 [openings] => 1 [appointments] => 0 ) ) 



Same Day

Inserting: stdClass Object ( [route_date] => 2014-01-10 [name] => 4 [openings] => 1 [appointments] => 0 ) 

contents of Opening: 

Array ( [2014-01-10] => stdClass Object ( [route_date] => 2014-01-10 [name] => 0 [openings] => 1 [appointments] => 0 ) ) 



New Day : 

Inserting: stdClass Object ( [route_date] => 2014-01-11 [name] => 0 [openings] => 1 [appointments] => 0 ) 

contents of Opening: 

Array ( [2014-01-10] => stdClass Object ( [route_date] => 2014-01-10 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014-01-11] => stdClass Object ( [route_date] => 2014-01-11 [name] => 0 [openings] => 1 [appointments] => 0 ) ) 



Same Day

Inserting: stdClass Object ( [route_date] => 2014-01-11 [name] => 1 [openings] => 1 [appointments] => 0 ) 

contents of Opening: 

Array ( [2014-01-10] => stdClass Object ( [route_date] => 2014-01-10 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014-01-11] => stdClass Object ( [route_date] => 2014-01-11 [name] => 0 [openings] => 1 [appointments] => 0 ) )

当一切都说完了，我得到了这个结果：

Array ([2014-01-10] => stdClass Object ([route_date] => 2014-01-10 [name] => 0 [openings] => 1 [appointments] => 0) [2014-01 -11] => stdClass 对象 ( [route_date] => 2014-01-11 [name] => 0 [openings] => 1 [约会] => 0 ) [2014-01-12] => stdClass 对象 ( [ route_date] => 2014-01-12 [name] => 0 [openings] => 1 [appointments] => 0) [2014-01-13] => stdClass Object ([route_date] => 2014-01-13 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014-01-14] => stdClass Object ([route_date] => 2014-01-14 [name] => 0 [openings] => 1 [约会] => 0 ) [2014-01-15] => stdClass 对象 ( [route_date] => 2014-01-15 [名称] => 0 [职位] => 1 [约会] => 0 ) [2014-01-16] => stdClass Object ([route_date] => 2014-01-16 [name] => 0 [openings] => 1 [appointments] => 0) [2014-01-17] = > stdClass Object ([route_date] => 2014-01-17 [name] => 0 [openings] => 1 [appointments] => 0) [2014-01-18] => stdClass Object ([route_date] => 2014-01-18 [姓名] => 0 [职位] => 1 [约会s] => 0 ) [2014-01-19] => stdClass Object ( [route_date] => 2014-01-19 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014- 01-20] => stdClass 对象 ( [route_date] => 2014-01-20 [name] => 0 [openings] => 1 [约会] => 0 ) [2014-01-21] => stdClass 对象 ( [route_date] => 2014-01-21 [name] => 0 [openings] => 1 [appointments] => 0) [2014-01-22] => stdClass Object ([route_date] => 2014-01- 22 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014-01-23] => stdClass Object ([route_date] => 2014-01-23 [name] => 0 [openings ] => 1 [约会] => 0) [2014-01-24] => stdClass 对象 ([route_date] => 2014-01-24 [名称] => 0 [职位] => 1 [约会] => 0 ) [2014-01-25] => stdClass Object ( [route_date] => 2014-01-25 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014-01-26] => stdClass Object ( [route_date] => 2014-01-26 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014-01-27] => stdClass Object ( [route_date] = > 2014-01-27 [姓名] => 0 [职位空缺] => 1 [约会] => 0 ) [2014-01-28] => stdClass Object ([route_date] => 2014-01-28 [name] => 0 [openings] => 1 [appointments] => 0) [2014-01 -29] => stdClass Object ( [route_date] => 2014-01-29 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014-01-30] => stdClass Object ( [ route_date] => 2014-01-30 [name] => 0 [openings] => 1 [appointments] => 0) [2014-01-31] => stdClass Object ([route_date] => 2014-01-31 [名称] => 0 [职位] => 1 [约会] => 0 ) [2014-02-01] => stdClass 对象 ([route_date] => 2014-02-01 [名称] => 0 [职位] => 1 [约会] => 0 ) [2014-02-02] => stdClass 对象 ( [route_date] => 2014-02-02 [名称] => 0 [职位空缺] => 1 [约会] => 0 ) [2014-02-03] => stdClass Object ([route_date] => 2014-02-03 [name] => 0 [openings] => 1 [appointments] => 0) [2014-02-04] = > stdClass Object ([route_date] => 2014-02-04 [name] => 0 [openings] => 1 [appointments] => 0) [2014-02-05] => stdClass Object ( [route_date] => 2014-02-05 [姓名] => 0 [职位空缺] => 1 [约会] => 0 ) [2014-02-06] => stdClass 对象 ( [route_date] => 2014-02-06 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014-02- 07] => stdClass Object ( [route_date] => 2014-02-07 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014-02-08] => stdClass Object ( [route_date ] => 2014-02-08 [name] => 0 [openings] => 1 [appointments] => 0) [2014-02-09] => stdClass Object ([route_date] => 2014-02-09 [ name] => 0 [openings] => 1 [appointments] => 0) [2014-02-10] => stdClass Object ([route_date] => 2014-02-10 [name] => 0 [openings] = > 1 [约会] => 0) [2014-02-11] => stdClass 对象 ([route_date] => 2014-02-11 [名称] => 0 [职位] => 1 [约会] => 0) [2014-02-12] => stdClass 对象（[route_date] => 2014-02-12 [name] => 0 [openings] => 1 [appointments] => 0）[2014-02-13] => stdClass 对象（[route_date] => 2014-02-13 [name] => 0 [openings] => 1 [appointments] => 0）[2014-02-14] => stdClass 对象（[route_date] => 2014 -02-14 [姓名] => 0 [职位空缺] => 1 [约会] => 0 ) [2014-02-15] => stdClass Object ( [route_date] => 2014-02-15 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014-02- 16] => stdClass 对象 ( [route_date] => 2014-02-16 [name] => 0 [openings] => 1 [约会] => 0 ) [2014-02-17] => stdClass 对象 ( [route_date ] => 2014-02-17 [name] => 0 [openings] => 1 [appointments] => 0) [2014-02-18] => stdClass Object ([route_date] => 2014-02-18 [ name] => 0 [openings] => 1 [appointments] => 0) [2014-02-19] => stdClass Object ([route_date] => 2014-02-19 [name] => 0 [openings] = > 1 [约会] => 0) [2014-02-20] => stdClass 对象 ([route_date] => 2014-02-20 [名称] => 0 [职位] => 1 [约会] => 0) [2014-02-21] => stdClass 对象（[route_date] => 2014-02-21 [name] => 0 [openings] => 1 [appointments] => 0）[2014-02-22] => stdClass 对象（[route_date] => 2014-02-22 [name] => 0 [openings] => 1 [appointments] => 0）[2014-02-23] => stdClass 对象（[route_date] => 2014 -02-23 [姓名] => 0 [职位空缺] => 1 [约会] = > 0 ) [2014-02-24] => stdClass Object ([route_date] => 2014-02-24 [name] => 0 [openings] => 1 [appointments] => 0) [2014-02-25 ] => stdClass Object ( [route_date] => 2014-02-25 [name] => 0 [openings] => 1 [appointments] => 0 ) [2014-02-26] => stdClass Object ( [route_date] => 2014-02-26 [name] => 0 [openings] => 1 [appointments] => 0) [2014-02-27] => stdClass Object ([route_date] => 2014-02-27 [name ] => 0 [职位空缺] => 1 [约会] => 0 ) )

您会注意到只有第一个对象的第一个实例被添加到新数组$openings。

更新：

我刚刚意识到我需要一个多维数组，但是当我尝试添加第二维时，我收到以下错误：

 Cannot use object of type stdClass as array

我在这里做错了什么？我想要一个数组$openings[route_date][number]，但我无法让它工作。任何帮助都会很棒。

【问题讨论】：

顺便说一句，请在输出前添加echo "<pre>" 并在其后添加echo "</pre>" 来打印此类数组。
我不知道你能做到这一点！太棒了！！！！谢谢！！！！
不客气，只是您应该注意的提示.. :)

标签： php mysql multidimensional-array

【解决方案1】：

这是因为array_push() 适用于数组，而不是对象。您应该将 stdClass 转换为数组。尝试使用：

$ts = (array) $ts;

【讨论】：

【解决方案2】：

在您的array_push($openings[$ts->route_date][$ts->name], $ts); 中，第一个参数似乎不是一个数组。如果第一个参数不是数组，array_push() 将引发警告。

This should be array_push($openings, $ts);

我做了一个很好的例子。

//I'm using mysql and I will switch to  MySQLi or PDO_MySQL later) 

$query = "SELECT * FROM events";
$result = mysql_query($query);
$openings = array();
while ($row = mysql_fetch_object($result)) {
    array_push($openings, $row); 
}
print_r($openings);

//output

Array
(
    [0] => stdClass Object
        (
            [idevent] => 1
            [event] => Event1
            [event_date] => 2014-01-06
        )

    [1] => stdClass Object
        (
            [idevent] => 2
            [event] => Event2
            [event_date] => 2014-01-07
        )

)

【讨论】：

【解决方案3】：

事实证明我需要做几件事。这是我需要的代码：

    $time_slots = $wpdb->get_results($query);
echo("<pre>"); 
//print_r($time_slots); 

echo ("<br/><br/><br/><br/>");
/*organize slots into array*/


$openings = array(); 
foreach($time_slots as $ts)
{
    if(empty($openings))
    {
        echo("Empty Array: ");
        echo ("<br/>");

        echo("Inserting: ");
        echo ("<pre>");
        print_r($ts); 
        echo("</pre>");
        echo ("<pre>");
        $openings[$ts->route_date][$ts->name] = $ts; <--- Needed to add the [$ts->name]
        echo("</pre>");
        echo("contents of Opening: ");
        echo ("<pre>");
        print_r($openings); 
        echo ("</pre>");

    }
    elseif (array_key_exists($ts->route_date, $openings)) 
    {
        echo("Same Day");
        echo("Inserting: ");
        echo ("<pre>");
        print_r($ts); 
        echo("</pre>");
        $openings[$ts->route_date][$ts->name]=$ts; 
        echo("contents of Opening: ");
        echo ("<br/>");
        echo ("<br/>");
        print_r($openings); 
        echo ("<br/><br/><br/><br/>");
    }
    else
    {
        echo("New Day : ");
        echo("Inserting: ");
        echo ("<pre>");
        print_r($ts); 
        echo("</pre>");
        echo ("<pre>");
        $openings[$ts->route_date][$ts->name] = $ts; 
        echo("</pre>");
        echo("contents of Opening: ");
        echo ("<pre>");
        print_r($openings); 
        echo ("</pre>");
    }

【讨论】：