我想将一个数组与一个文本字符串进行匹配,其中与数组键匹配的单词将被一个带有匹配数组值的标题的 span 标签替换。
我可以用 str_ireplace 做到这一点,但匹配的词会丢失大小写:
$glossary = array(
'word1' => '<span title="Explanation for Word 1">word1</span>',
'word2' => '<span title="Explanation for Word 2">word2</span>',
'word3' => '<span title="Explanation for Word 3">word3</span>'
);
$text = "This is a text about Word1. We also talk about word2 and WORD3. Also woRd3, word2 and WORD1";
list($keys, $values) = array_divide($glossary);
$result = str_ireplace($keys, $values, $text);
如前所述,这可行,但在此解决方案中,所有匹配的单词都将小写。
我想实现的是这样的:
'This is a text about <span title="Explanation for Word 1">Word1</span>.
We also talk about <span title="Explanation for Word 2">word2</span> and
<span title="Explanation for Word 3">WORD3</span>.
Also <span title="Explanation for Word 3">woRd3</span>,
<span title="Explanation for Word 2">word2</span>
and <span title="Explanation for Word 1">WORD1</span>'
进行更换并保持外壳完好无损。
我找到了一个非常接近的回复,但它只适用于在匹配词周围添加 span 标签,它不会为标题添加第二个变量 ( php str_ireplace without losing case)。
我不太了解正则表达式(这让我眼花缭乱),无法通过为跨度标题添加第二个变量来更改它:
$txt = 'Hi! How are you doing? Have some stars: * * *!';
$array_of_words = array('Hi!', 'stars', '*');
$pattern = '#(?<=^|\W)('
. implode('|', array_map('preg_quote', $array_of_words))
. ')(?=$|\W)#i';
echo preg_replace($pattern,
"<span style='background-color:#EEEE00'>$1</span>", $txt);
最佳答案
您可以循环运行此替换:
$txt = 'Hi! How are you doing? Have some stars: * * *!';
$glossary = array(
'Hi!' => 'title 1',
'stars' => 'title 2',
'*' => 'title 3'
);
$result = $txt;
foreach ($glossary as $keyword => $title) {
$pattern = '#(?<=^|\W)('.preg_quote($keyword).')(?=$|\W)#i';
$result = preg_replace($pattern, "<span title='{$title}'>$1</span>", $result);
}
echo $result;
关于php - 使用关联数组替换字符串中的几个单词,保持原始大小写不变,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32746075/