重新排列数组索引

Question

我有一个多维数组，如下所示

  Array
    (
        [0] => attributewidget Object
            (
                [_child] => Array
                    (
                    )

                [_parent] => 
                [_oid] => a_1
                [_errorMsg] => 
                [_debugTraceFunc] => 
                [classname] => AttributeWidget
                [version] => 1.0.0.0
                [attributeName] => 
                [comparableProperties] => Array
                    (
                        [0] => abbreviation
                        [1] => attributeName
                        [2] => classname
                        [3] => conditionRef
                    )

            )

        [1] => Array
            (
                [0] => attributewidget Object
                    (
                        [_child] => Array
                            (
                            )

                        [_parent] => 
                        [_oid] => a_2
                        [_errorMsg] => 
                        [_debugTraceFunc] => 
                        [classname] => AttributeWidget
                        [version] => 1.0.0.0
                        [attributeName] => 
                        [comparableProperties] => Array
                            (
                                [0] => abbreviation
                                [1] => attributeName
                                [2] => classname
                                [3] => conditionRef
                            )

                    )

            )
        [2] => Array
        (
            [0] => attributewidget Object
                (
                    [_child] => Array
                        (
                        )

                    [_parent] => 
                    [_oid] => a_3
                    [_errorMsg] => 
                    [_debugTraceFunc] => 
                    [classname] => AttributeWidget
                    [version] => 1.0.0.0
                    [attributeName] => cp1
                    [comparableProperties] => Array
                        (
                            [0] => abbreviation
                            [1] => attributeName
                            [2] => classname
                            [3] => conditionRef
                        )

                )

        )
    )

我理想地想删除[1] =＆gt;数组[2] =＆gt;数组并重新排列索引。   有没有办法让索引重新排列如下。

 Array
    (
        [0] => attributewidget Object
            (
                [_child] => Array
                    (
                    )

                [_parent] => 
                [_oid] => a_1
                [_errorMsg] => 
                [_debugTraceFunc] => 
                [classname] => AttributeWidget
                [version] => 1.0.0.0
                [attributeName] => 
                [comparableProperties] => Array
                    (
                        [0] => abbreviation
                        [1] => attributeName
                        [2] => classname
                        [3] => conditionRef
                    )

            )

                [1] => attributewidget Object
                    (
                        [_child] => Array
                            (
                            )

                        [_parent] => 
                        [_oid] => a_2
                        [_errorMsg] => 
                        [_debugTraceFunc] => 
                        [classname] => AttributeWidget
                        [version] => 1.0.0.0
                        [attributeName] => Name?
                        [comparableProperties] => Array
                            (
                                [0] => abbreviation
                                [1] => attributeName
                                [2] => classname
                                [3] => conditionRef
                            )

                    )



            [2] => attributewidget Object
                (
                    [_child] => Array
                        (
                        )

                    [_parent] => 
                    [_oid] => a_3
                    [_errorMsg] => 
                    [_debugTraceFunc] => 
                    [classname] => AttributeWidget
                    [version] => 1.0.0.0
                    [attributeName] => cp1
                    [comparableProperties] => Array
                        (
                            [0] => abbreviation
                            [1] => attributeName
                            [2] => classname
                            [3] => conditionRef
                        )

                )


    )

Answer 1

循环遍历数组，并将嵌套数组的任何元素替换为其第一个元素，以删除该额外级别的间接。

foreach ($array as &$element) {
    if (is_array($element) {
        $element = $element[0];
    }
}