0

配列から2つの単語フレーズを取得しようとしていますが、単語の前後に空白のある1つの単語フレーズを取得し続けています。

$text = preg_replace(array('/\s{2,}/', '/[\t\n]/'), ' ', $text);
$textarray = explode(" ", $text);
array_filter($textarray);
$textCount = array_count_values($textarray);
arsort($textCount);
$twoWords = array();
for ($i = 0; $i<=count($textarray); ++$i) {
    if ($textarray[$i]<>"  ") {
        $twoWords[$i] = $textarray[$i]." ".$textarray[$i + 1];
    } else {
        $twoWords[$i] = "blah";
    }
}
foreach ($twoWordsCount as $tey => $val2) {
    if ($tey == null || $tey == "" || $tey == "\r\n"  || $tey == "\t"  || $tey == "\r"  || $tey == "\n" || $tey == "&nbsp;" || $tey == "  " || $tey == " ") {
        //do nothing
    } else {
        echo $val2."\n";
    }
}

何らかの理由で、これは空白のHelloまたはTestのような値を返し、次に空白を返しますが、hellotestを返すようにします

4

2 に答える 2

2

スクリプトの後半が何をするのかわかりませんが、最初の部分はコードの1行のpreg_split（）に減らすことができます

<?php
foreach( array('hello world', ' hello world', 'hello world ', '  hello     world     ') as $input ) {
    $w = preg_split('!\s+!', $input, -1, PREG_SPLIT_NO_EMPTY);
    var_dump($w);
}

プリント

array(2) {
  [0]=>
  string(5) "hello"
  [1]=>
  string(5) "world"
}
array(2) {
  [0]=>
  string(5) "hello"
  [1]=>
  string(5) "world"
}
array(2) {
  [0]=>
  string(5) "hello"
  [1]=>
  string(5) "world"
}
array(2) {
  [0]=>
  string(5) "hello"
  [1]=>
  string(5) "world"
}

編集：多分あなたはこのようなものを探しています

<?php
$input = getData();
$w = preg_split('![\s[:punct:]]+!', $input, -1, PREG_SPLIT_NO_EMPTY);
$w = array_count_values($w);
arsort($w);
$ci = new CachingIterator( new ArrayIterator( $w ) );
foreach( $ci as $next=>$cnt ) {
    printf("%s(%d) %s(%d)\n",
        $next, $cnt,
        $ci->getInnerIterator()->key(), $ci->getInnerIterator()->current()
    );
}


function getData() {
    return <<< eot
Mary had a little lamb,
whose fleece was white as snow.

And everywhere that Mary went,
the lamb was sure to go.

It followed her to school one day
which was against the rules.

It made the children laugh and play,
to see a lamb at school.

And so the teacher turned it out,
but still it lingered near,

And waited patiently about,
till Mary did appear.

"Why does the lamb love Mary so?"
the eager children cry.

"Why, Mary loves the lamb, you know."
 the teacher did reply.
eot;
}

印刷する

the(8) lamb(5)
lamb(5) Mary(5)
Mary(5) was(3)
was(3) And(3)
And(3) to(3)
to(3) It(2)
It(2) school(2)
school(2) so(2)
so(2) Why(2)
Why(2) did(2)
did(2) it(2)
it(2) teacher(2)
teacher(2) children(2)
children(2) a(2)
a(2) waited(1)
waited(1) patiently(1)
patiently(1) about(1)
about(1) till(1)
[...]
white(1) went(1)
went(1) (0)

http://docs.php.net/class.cachingiteratorを参照してください

于 2012-04-20T20:30:09.140 に答える
0

これにより、スペース、タブ、または改行がいくつあっても、最初の2つの単語が抽出されます。

$text = trim(preg_replace('/[\s\t\r\n]+/', ' ', $text));
$firstTwoWords = substr($text, 0, strpos($text, ' ', strpos($text, ' ') + 1));
于 2012-04-20T20:39:57.577 に答える