我有一个像这样的简单代码:

        class o99_custom_fields {
            /**
            * @var  string  $prefix  The prefix for storing custom fields in the postmeta table
            */
            var $prefix = 'o99_';
            /**
            * @var  array  $customFields  Defines the custom fields available
            */
            var $customFields = array(

                array(
                    "name"          => "some_name",
                    "title"         => "some Title",
                    "description"   => "Some Desctiption Text",
                    "type"          => "k_upload",
                    "scope"         =>  array( "post" ),
                    "capability"    => "edit_post"
                ),

                array(
                    "name"          => "some_name2",
                    "title"         => "some Title",
                    "description"   => "Some Desctiption Text",
                    "type"          => "k_upload",
                    "scope"         =>  array( "post" ),
                    "capability"    => "edit_post"
                ),

                array(
                    "name"          => "some_name3",
                    "title"         => "some Title",
                    "description"   => "",
                    "type"          => "k_textarea",
                    "scope"         =>  array( "post" ),
                    "capability"    => "edit_post"
                ),
            );
... more functions and more code ...
    } // End Class

一切似乎都还好，

当我尝试更改一些数组值并将它们放在方括号 ()

例如:

array(
                "name"          => "some_name",
                "title"         => __("some Title","text_domain"),// ERROR OCCUR
                "description"   => "Some Desctiption Text",
                "type"          => "k_upload",
                "scope"         =>  array( "post" ),
                "capability"    => "edit_post"
            ),

错误信息是:

Parse error: syntax error, unexpected '(', expecting ')' in E:\my_path\myfile.php on line 18

请注意，它与函数 __() (standard wordpress translation function) 无关，并且错误与函数无关，而是与 SYNTAX 相关。 (我过去曾数百次使用此函数，没有任何问题 - 在这种情况下，_x() 和 _e() 也会因相同的语法错误而失败..)

我所有的括号都已关闭，我已经检查并重新检查，除非我完全失明，否则我会说没问题，但无论我将括号放在此类中的什么位置，我仍然会遇到此错误。

另一个例子:这也会失败并出现同样的错误:

class o99_custom_fields {
                /**
                * @var  string  $prefix  The prefix for storing custom fields in the postmeta table
                */
                var $prefix = 'o99_';
                /**
                * @var  array  $customFields  Defines the custom fields available
                */
                var $dummy_strings = array (
__('x1','text_domain'),
__('x2','text_domain'),
);

    ... more functions and more code ...
        } // End Class

同样，错误似乎与 SYNTAX 相关，即使我的所有括号都已关闭。 我还检查了文件的正确 php 开始和结束标记，甚至字符集和编码(没有 BOM 的 UTF-8)

我以前从未遇到过这样的问题 - 所以任何帮助/提示/见解将不胜感激..

编辑我:

在这些数组之后，是构造函数..

/**
* PHP 4 Compatible Constructor
*/
function o99_custom_fields() { $this->__construct(); }
/**
* PHP 5 Constructor
*/

function __construct() {
    add_action( 'admin_menu', array( &$this, 'createCustomFields' ) );
    add_action( 'save_post', array( &$this, 'saveCustomFields' ) );
}

最佳答案

您遇到的问题是因为您无法通过调用其他函数来初始化类属性。

像这样将属性初始化为默认值:

class SomeClass{
...
private $myProp0 = array(); //OK
private $myProp1 = array('foo' => 'bar', 'foooo' => 'baaar'); //OK
private $myProp2 = null; //OK
private $myProp3 = 10; //OK
private $myProp4 = "something"; //OK
private $myProp5 = __('translate me') // NOT OK
...
}

要用其他值初始化您的属性(例如，通过调用其他函数)，您必须在类的构造函数中设置它。

像这样的东西应该可以工作:

function someFunction($x, $y){
    return "mouahahaha";
}

class SomeClass{
    private $something = array();

    public function __construct(){
        $this->something = array(
            'somekey1' => 'foobar',
            'somekey2' => someFunction("foo", "bar"),
        );
    }
}

换句话说，您需要将您的数组初始化从类体移至构造函数。

将该示例放入您自己的代码中:

class o99_custom_fields {
        /**
        * @var  string  $prefix  The prefix for storing custom fields in the postmeta table
        */
        var $prefix = 'o99_';
        /**
        * @var  array  $customFields  Defines the custom fields available
        */
         private $customFields = array();
        /**
        * PHP 4 Compatible Constructor
        */
        function o99_custom_fields() { $this->__construct(); }
        /**
        * PHP 5 Constructor
        */

        public function __construct() {

         $this->customFields =  array(

            array(
            "name"          => "some_name",
            "title"         => __("some Title","text_domain"),// NO ERROR NOW
            "description"   => "Some Desctiption Text",
            "type"          => "k_upload",
            "scope"         =>  array( "post" ),
            "capability"    => "edit_post"
        ),
       );
       // Do your other construct things 
     } // END __construct

关于PHP - 类数组中带有括号的奇怪语法错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19740056/