Question

我需要避免CN = Users，DC = aab，DC =从数组返回的本地值。然后将剩余名称的INITIALS保存到新数组中。任何帮助，将不胜感激。我真的不确定从哪里开始。当我执行以下操作时，这就是它现在返回的方式。

$reportees = $_SESSION["user"]->directreports;
$reportees = implode(",", $reportees);

CN = John Doe，CN = Users，DC = aab，DC = local，CN = Jane Ann Doe，CN = Users，DC = aab，DC = local

Answer 1

$reportees = $_SESSION["user"]->directreports;
$blacklist = array('CN=Users', 'DC=aab', 'DC=local');

$arrayOfInitials = array();
foreach($reportees as $key=>$reportee){
    // ignore the unwanted values :
    if(!in_array($reportee, $blacklist)){
        // take only the value after the "=":
        $reportee = explode("=", $reportee);
        if(isset($reportee[1])){
            $reportee = $reportee[1];
            $reporteeNames = explode(" ", $reportee);
            $initials = "";
            // get the initials :
            foreach($reporteeNames as $name){
                $initials .= strtoupper($name[0]);
            }
            $arrayOfInitials[] = $initials;
        }

    }
}

$initialsAsStr = implode(',', $arrayOfInitials);
var_dump($initialsAsStr);

输出将是：

string(10) "JD,B,JAD,B"

Answer 2

<?php
$in = ['CN=John Doe','CN=Users','DC=aab','DC=local','CN=Jane Ann Doe','CN=Users','DC=aab','DC=local'];

function initials_from_value($i) {
    strtok($i, '=');
    $i          = strtok('=');
    $names      = explode(' ', $i);
    $initials   = array_map(function ($i) { return substr($i, 0, 1); }, $names);

    return $initials;
}

$out = array();
foreach($in as $item) {
    if(strpos($item, 'CN=') === 0 && $item !== 'CN=Users') {
        $out[] = implode(' ', initials_from_value($item));
    }
}

var_export($out);

输出：

array (
  0 => 'J D',
  1 => 'J A D',
)

附录（仅整理首字母和最后字母）：

$out = array();
foreach($in as $item) {
    if(strpos($item, 'CN=') === 0 && $item !== 'CN=Users') {
        if( ($initials = initials_from_value($item)) && count($initials) >= 2) {
            $first = reset($initials);
            $last  = end($initials);
            $out[] = $first . $last;
        }
    }
}

var_export($out);

输出：

array (
  0 => 'JD',
  1 => 'JD',
)

Answer 3

您可以使用闭包过滤数组，并为不需要的项返回FALSE，以便可以使用array_filter进行过滤。

通过这种方式，您可以逐步检查结果，我发现这更容易调试。

$values = array_map(
        /* Get a reportee, return the name or FALSE */
        function($reportee) {
            list($key, $value) = explode('=', $reportee);
            switch ($key) {
                case 'CN': // CN=Users or CN=Jane Ann Doe
                    if ('Users' === $value) {
                         return false;
                    }
                    // $value is now hopefully Jane Ann Doe.
                    return $value;
                default: // Anything else gets FALSEd.
                    return false;
            }
        },
        $reportees
    );

// Eliminate unwanted results:
// [ 0 => false, 1 => false, 2 => false, 3 => 'Jane Ann Doe', 4 => false ]
$values = array_filter($values);

// $values should now be something like [ 3 => 'Jane Ann Doe' ]
// Get initials.
$values = array_map(
    /* input: "Jane Ann Doe"; output: "JAD" */
    function ($value) {
        $words = preg_split('#\\s+#', $value);
        $initials = array_map(
            function ($word) {
                return substr($word, 0, 1);
            },
            $words
        );
        return implode('', $initials);
    },
    $values
);

// $values is now [ '3' => 'JAD' ].
// You can use array_values($values) to renumber the array.

Answer 4

以下内容应该有效（PHP＆gt; = 5.4）：

$reportees = array('CN=John Doe',
                   'CN=Users',
                   'DC=aab',
                   'DC=local',
                   'CN=Jane Ann Doe',
                   'CN=Users',
                   'DC=aab',
                   'DC=local');
$result = [];
foreach ($reportees as $value) {
    switch ($value) {
        // ignore these values
        case 'CN=Users':
        case 'DC=aab':
        case 'DC=local':
            continue 2;

        // get initials of these values
        default:
            $expr = '/(?<=\s|^)[a-z]/i';
            preg_match_all($expr, explode('=', $value)[1], $matches);
            $result[] = strtoupper(implode('', $matches[0]));
    }
}
$reportees = implode(',', $result);

结果：

JD,JAD

我需要忽略数组中的某些项并从剩余的

4 个答案: