所以我有這樣的文字："word1 word2 word3 etc"我有一個帶有一組替換物的數組，我必須像這樣攜帶：[ "word1 word2" => "<a href="someurl">word1 word2</a>", "word2" => "<a href="someurl">word2</a>", "word3" => "<a href="someurl">word3</a>" ]基本上對于某些詞（或它們的組合），我必須添加一些標簽。我需要避免這種情況，因為“word1 word2”已經像這樣被替換了：<a href="someurl">word1 word2</a> word3 etc我需要避免它變成這樣："<a href="someurl">word1 <a href="someurl">word2</a></a> word3 etc" ^^^ another replacement inside "word1 word2"如何避免替換已在其他替換中找到的較小字符串？使用 str_replace 的實時代碼不起作用：$array = [ "word1 word2" => "<a href='someurl'>word1 word2</a>", "word2" => "<a href='someurl'>word2</a>", "word3" => "<a href='someurl'>word3</a>" ];$txt = "word1 word2 word3 etc";echo str_replace(array_keys($array),array_values($array),$txt);http://sandbox.onlinephpfunctions.com/code/85fd62e88cd0131125ca7809976694ee4c975b6b正確的輸出：<a href="someurl">word1 word2</a> <a href="someurl">word3</a> etc
3 回答
慕標琳琳
TA貢獻1830條經驗 獲得超9個贊
嘗試這個：
$array = [
"word1 word2" => "<a href='someurl'>word1 word2</a>",
"word2" => "<a href='someurl'>word2</a>",
"word3" => "<a href='someurl'>word3</a>"
];
$txt = "word1 word2 word3 etc";
foreach ($array as $word => $replacement) {
if (!stripos($txt, ">$word<") && !stripos($txt, ">$word") && !stripos($txt, "$word<") ){
$txt = str_replace($word, $replacement, $txt);
}
}
echo $txt;
// output: <a href='someurl'>word1 word2</a> <a href='someurl'>word3</a> etc
基本上，在替換單詞之前，請檢查它是否已經包含在標簽中
動漫人物
TA貢獻1815條經驗 獲得超10個贊
不確定這是否是最好的解決方案，但您可以將單詞的組合替換為完全不同的內容，然后在完成后將其替換回原來的形式。
例子
$array = [
"word1 word2" => "<a href='someurl'>***something***else***</a>",
"word2" => "<a href='someurl'>word2</a>",
"word3" => "<a href='someurl'>word3</a>",
];
$array2 = [
"***something***else***" => "word1 word2",
];
$txt = "word1 word2 word3 etc";
$txt = str_replace(array_keys($array),array_values($array),$txt);
$txt = str_replace(array_keys($array2),array_values($array2),$txt);
echo $txt;
蠱毒傳說
TA貢獻1895條經驗 獲得超3個贊
也許在一組替換數組的鍵上添加“空格”并執行str_replace()。可能是這樣的：
<?php
//Enter your code here, enjoy!
$array = [
"word1 word2 " => "<a href='someurl'>word1 word2</a>",
"word2 " => "<a href='someurl'>word2</a>",
"word3 " => "<a href='someurl'>word3</a>"
];
$txt = "word1 word2 word3 etc";
echo str_replace(array_keys($array),array_values($array),$txt." ");
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