循环中的if条件

Question

---

请有人帮我解决“If 行”，我正在练习代码的其余部分，但最后一行 If 语句不起作用，怎么办？

$employees = array (
    array("Name" =\> " Harry ", "Age" =\> 25 , "Department" =\> " Management"),
    array("Name" =\> " Jack ",   "Age" =\>   31,  "Department" =\> " Developer"),
    array("Name" =\> " Harry ",  "Age" =\>  35,  "Department" =\> " Developer")`
);

foreach ($employees as $element){
    
    echo " Employees name :" ,$element ['Name'] ,'<br/>' ;
    echo " Age :" ,$element['Age'] ,'<br/>' ;
    echo " Function :" ,$element ["Department"];
    echo "<br>";
} 

$element =0;  
    
while ($element < count($employees)){
    echo $employees[$element]["Name"];
    echo "<br>";
    $element++  ;
     
    echo "<br>";
    
    if ([$element]["Name"] == "Jack" ) {
        echo "He is the senior Developer", $element["Name"] ;
    }
}

我尝试根据数组名称或仅 $key 设置条件，但我无法让函数做出反应`

Answer 1

首先，你需要在 if 语句中添加

$employees

。

if ($employees[$element ]["Name"] == "Jack" ) {
    echo "He is the senior Developer", $element["Name"] ;
}

您更改 $element 的值，因此您可以获得下一个数组值的值。

其次，你可以使用

array_filter

。

$filter = 'Jack';
$newArray = array_filter($employees, function($e) use ($filter){
                                                //    ^ import criteria
    return $e['Name'] === $filter;
});
echo "He is the senior Developer" . $newArray["Name"] ;

Answer 2

if ([$element ]["姓名"] == "杰克")

没有数组，只有 2 个索引