php - Replacing two words in string (PHP)

Question

I need to replace two words with one word in string. For example my string looks like:

$mySentence = "abcd efg ijkl";
$replaceWith = "XYZ";
$newString = str_replace("efg ijkl", $replaceWith, $mySentence);

But there is no any changes.

The output should be abcd XYZ.

score 2 · Accepted Answer

$mySentence = "abcd efg ijkl";
$replaceWith = "XYZ";
$newString = str_replace("efg ijkl", $replaceWith, $mySentence);
echo $newString;

这输出

abcd XYZ

score 1 · Accepted Answer

但是没有任何变化。

有变化，但你只是不输出它来查看。您正在分配$newString替换的文本，但从不显示新字符串。

因此，正如人们所回答的那样，您只需要输出变量即可。通过echo或var_dump()。

echo $newString

会给你

abcd XYZ

score 0 · Accepted Answer

代码：

<?php
$mySentence = "abcd efg ijkl";
$replaceWith = "XYZ";
$newString = str_replace("efg ijkl", $replaceWith, $mySentence);
echo $newString;
?>

score 0 · Accepted Answer

 $mySentence = "abcd efg ijkl";
 $replaceWith = "XYZ";
 $newString = preg_replace("/efg ijkl/", $replaceWith, $mySentence);
 print_r($newString);

输出：

abcd XYZ

4 回答 4