php - 根据公共(public)字符串对数组项进行分组

Question

我有以下代码，它获取两个单独的数组，翻转姓氏和名字(也删除逗号)并输出:

Director: Bert & Bertie

Writer: Bert & Bertie

Producer: Louise Knight

Producer: Miles Wilkes

Producer: Andy Welch

Actor: Craig Parkinson

Actor: Camilla Rutherford

Actor: Paul Bhattarcharjee

Actor: Ford Kieman

Actor: Maurren the Pug

Actor: Hannah Walters

DP: Lynda Hall

Cut: Matt Chodan

我需要做的是将类似的组分组以输出如下内容:

Director: Bert & Bertie

Writer: Bert & Bertie

Producer: Louise Knight, Miles Wilkes, Andy Welch

Actors: Craig Parkinson, Camilla Rutherford, Paul Bhattarcharjee, Ford Kieman, Maurren the Pug, Hannah Walters

DP: Lynda Hall

Cut: Matt Chodan

当前的 PHP 代码:

<?php 
$arrayname=explode(":::",$dwzXmlRec_1->GetFieldValue("PERSON_NAME"));
$arraynamel=count($arrayname);
$arrayrole=explode(":::",$dwzXmlRec_1->GetFieldValue("PERSON_FUNCTION"));   
$arrayrolel=count($arrayrole);

$name = "Lastname, Firstname"; 
$names = explode(", ", $name); 
$name = $names[1] . " " . $names[0]; 

for($i=0;$i<$arrayrolel;$i++) 
    { 
        $names = explode(", ", $arrayname[$i]); 
        $name = $names[1] . " " . $names[0];
        echo $arrayrole[$i].': '.$name.'<br />';
    } 
?>

更新:只有一个问题，数据是从 xml 节点设置的，因为它在数组“as”中，所以一个角色先于另一个。例如，“ Actor ”排在第一位，然后是“导演”。有什么简单的方法可以扭转它，让导演先到后 Actor ？我添加了代码来隐藏不需要的角色/人员，请参见下文:

// print out the list of people in each role
foreach($roles as $rolename => $people) {
    if ($rolename!="Cut" && $rolename!="Producer" && $rolename!="DP" && $rolename!="Writer"){
        if($rolename=="Actor") { $rolename="Cast";};
        echo $rolename . ": " . implode(", ", $people) . "<br />";
    }
}

Answer 1

我会构建一个数组，将角色名称映射到一组担任该角色的人员。可能是这样的:

$roles = array();
for($i = 0; $i < $arrayrole1; $i++) {
    $names = explode(", ", $arrayname[$i]);
    $name = $names[1] . " " . $names[0];
    // append the name to the array of people filling the role
    $roles[$arrayrole[$i]][] = $name; 
}

// print out the list of people in each role
foreach($roles as $rolename => $people) {
    echo $rolename . ": " . implode(", ", $people) . "<br />";
}