Question

我有一个需要过滤的数组。我希望使用一系列单词进行过滤，以便在没有该单词的情况下创建一个新数组＆＃39;

Array
(
[0] => Array
    (
        [occurence] => 17
        [word] => sampleword
    )

[1] => Array
    (
        [occurence] => 14
        [word] => sampleword1
    )

[2] => Array
    (
        [occurence] => 14
        [word] => sampleword2
    )
[3] => Array
    (
        [occurence] => 14
        [word] => sampleword3
    )
)

我有一个功能很好但只适用于一个单词＆＃39;

function words_not_included( $w ) {
   $not_included      = 'sampleword1';
   return $w['word'] != $not_included;
}

然后我申请了

$new_array = array_filter( $old_array, "words_not_included" );

所以它适用于一个单词

如何使用一系列被禁止的单词＆＃39;像：

$forbidden_words = array('sampleword1','sampleword3');

然后用它们过滤并输出一个新的数组：

Array
(
[0] => Array
    (
        [occurence] => 17
        [word] => sampleword
    )

[1] => Array
    (
        [occurence] => 14
        [word] => sampleword2
    )

)

Answer 1

使用现有代码in_array：

function words_not_included( $w ) {
   $not_included = array('sampleword1', 'sampleword3');
   return !in_array($w['word'], $not_included);
}

Answer 2

如果我理解正确，你有2个数组，你希望第一个数组不包含第二个数组中的任何单词。

例如，如果你有[＆＃39;球＆＃39;，＆＃39;馅饼＆＃39;，＆＃39; cat＆＃39;，＆＃39; dog＆＃39;，＆＃39;菠萝＆＃39;]作为第一个数组，[＆＃39; ball＆＃39;，＆＃39; cat＆＃39;]作为第二个数组，你希望输出是[＆＃39; pie＆＃39; ，＆＃39; dog＆＃39;菠萝＆＃39;]

in_array（）允许您传入一个数组，以便您可以将多个值进行比较。根据您当前的代码，您可以执行以下操作：

function words_not_included( $allWords, $ignoreWords ) { return !in_array( $ignoreWords, $allWords); }

Answer 3

尝试这样

function words_not_included($inputArray, $forbiddenWordsArray){

$returnArray = array();

//loop through the input array

for ($i = 0; $i < count($inputArray);$i++){

    foreach($inputArray[$i] as $key => $value){
        $allowWordsArray = array();
        $isAllow = false;

        //only the word element
        if($key == "word"){

            //separate the words that will be allow
            if(!in_array($value,$forbiddenWordsArray)){
                $isAllow = true;
            }
        }

        if ($isAllow === true){
            $returnArray[] = $inputArray[$i];
        }

    }
}

return $returnArray;
}


$inputArray = array();
$inputArray[] = array("occurence" => 17, "word" => "sampleword");
$inputArray[] = array("occurence" => 17, "word" => "sampleword1");
$forbiddenWords = array("sampleword");

var_dump(words_not_included($inputArray, $forbiddenWords));

如何使用另一个数组过滤Array

3 个答案: