如何用另一个字符串替换字符串并在php和mysql中保留大小写？

我正在尝试做某种翻译，它能够保持文本的大小写。 我需要在PHP字符串和MySQL查询中替换它

例如：

Potato is jumping all over the PLACE.
Potato is jumping all over the pLAcE. (optional)
Potato is jumping all over the place.
Potato is jumping all over the Place.

我想用“花园”代替“地方”

Potato is jumping all over the GARDEN.
Potato is jumping all over the gARdEe. (optional)
Potato is jumping all over the garden.
Potato is jumping all over the Garden.

---

它还可以与短语一起使用。

我创建了一个函数，可以为您替换单词并保留大小写

function replaceWithCase($source, $replacement, $string) {
    // Does the string contain the source word?
    if (strpos($string, $source) === false) {
        return false;
    }

    // If everything is uppercase, return the replacement fully uppercase
    if (ctype_upper($source)) {
        return str_replace($source, strtoupper($replacement));
    }

    // Set an array to work with
    $characters = array();

    // Split the source into characters
    $sourceParts = explode('', $source);

    // Loop throug the characters and set the case
    foreach ($sourceParts as $k => $sp) {
        if (ctype_upper($sp)) {
            $characters[$k] = true;
        } else {
            $characters[$k] = false;
        }
    }

    // Split the replacement into characters
    $replacementParts = explode('', $replacement);

    // Loop through characters and compare their case type
    foreach ($replacementParts as $k => $rp) {
        if (array_key_exists($k, $characters) && $characters[$k] === true) {
            $newWord[] = strtoupper($rp);
        } else {
            $newWord[] = strtolower($rp);
        }
    }

    return substr_replace($source, implode('', $newWord), $string);
}

// usage
echo replaceWithCase('AppLes', 'bananas', 'Comparing AppLes to pears');

注意：它未经测试，可能需要对函数stringReplace（$findStr，$replaceStr，$str）进行一些调整

function stringReplace($findStr, $replaceStr, $str)
{
    $isLowerStr = true;
    for($i=0; $i<strlen($findStr); $i++){
        if(ord($findStr[$i]) >= 97 && ord($findStr[$i])<=122){
            if(ord($replaceStr[$i]) >= 65 && ord($replaceStr[$i])<=96){
                $replaceStr[$i] = strtolower($replaceStr[$i]);
            }else{
                $replaceStr[$i] = $replaceStr[$i];
            }
        }else{
            $isLowerStr = false;
            $replaceStr[$i] = strtoupper($replaceStr[$i]);
        }
    }
    if($isLowerStr == false){
        if(strlen($replaceStr) > strlen($findStr)){
            for($i=0;$i<(strlen($replaceStr)-strlen($findStr));$i++){
                if(strtoupper($findStr) == $findStr){
                        $replaceStr[strlen($findStr)+$i] = strtoupper($replaceStr[strlen($findStr)+$i]);
                }else{
                    $replaceStr[strlen($findStr)+$i] = strtolower($replaceStr[strlen($findStr)+$i]);
                }
            }
        }
    }
    echo str_replace($findStr, $replaceStr, $str);die;
}
$findStr = 'Place';
$replaceStr = 'garden';
echo stringReplace($findStr, $replaceStr, 'Potato is jumping all over the '.$findStr.'.');

{ $isLowerStr=true； 对于（$i=0；$i=97&&ord（$findStr[$i]）=65&&ord（$replaceStr[$i]）strlen（$findStr））{

---

对于（$i=0；$i，因此我最终成功创建了自己的函数。不过，感谢您的帮助和启发

function replaceWithCase($source, $replacement, $string, $pos = 0) {

    while (($pos = strpos(strtolower($string), strtolower($source), $pos))!== false) {
        $substr = mb_substr($string, $pos, strlen($source));
        $remaining = mb_substr($string, $pos + strlen($source));

        if (ctype_upper($substr)) {
            $string = substr_replace($string,strtoupper($replacement),$pos,strlen($source));
            continue;
        }

        $substrParts = preg_split('//u', $substr, null, PREG_SPLIT_NO_EMPTY);
        $replaceParts = preg_split('//u', $replacement, null, PREG_SPLIT_NO_EMPTY);
        $newWord = '';

        foreach ($replaceParts as $k => $rp) {
            if (array_key_exists($k,$substrParts))
                $newWord .= ctype_upper($substrParts[$k]) ? mb_strtoupper($rp) : mb_strtolower($rp);
            else
                $newWord .= $rp;  
        }
        $string = substr_replace($string,$newWord,$pos,strlen($source));
        $pos = $pos + strlen($source);
    }

    return $string;
}

echo replaceWithCase("place", "garden", "Potato is jumping all over the PLACE");
echo "<br>";
echo replaceWithCase("jumping", "running", "Potato is jumping all over the pLAcE");
echo "<br>";
echo replaceWithCase("jumping", "cry", "Potato is jumping all over the place");
echo "<br>";
echo replaceWithCase("all", "", "Potato is jumping all over the Place");
echo "<br>";
echo replaceWithCase(" ", ";", "Potato is jumping all over the Place", 10);
echo "<br>";

function replaceWithCase($source, $replacement, $string, $pos = 0) {

    while (($pos = strpos(strtolower($string), strtolower($source), $pos))!== false) {
        $substr = mb_substr($string, $pos, strlen($source));
        $remaining = mb_substr($string, $pos + strlen($source));

        if (ctype_upper($substr)) {
            $string = substr_replace($string,strtoupper($replacement),$pos,strlen($source));
            continue;
        }

        $substrParts = preg_split('//u', $substr, null, PREG_SPLIT_NO_EMPTY);
        $replaceParts = preg_split('//u', $replacement, null, PREG_SPLIT_NO_EMPTY);
        $newWord = '';

        foreach ($replaceParts as $k => $rp) {
            if (array_key_exists($k,$substrParts))
                $newWord .= ctype_upper($substrParts[$k]) ? mb_strtoupper($rp) : mb_strtolower($rp);
            else
                $newWord .= $rp;  
        }
        $string = substr_replace($string,$newWord,$pos,strlen($source));
        $pos = $pos + strlen($source);
    }

    return $string;
}

echo replaceWithCase("place", "garden", "Potato is jumping all over the PLACE");
echo "<br>";
echo replaceWithCase("jumping", "running", "Potato is jumping all over the pLAcE");
echo "<br>";
echo replaceWithCase("jumping", "cry", "Potato is jumping all over the place");
echo "<br>";
echo replaceWithCase("all", "", "Potato is jumping all over the Place");
echo "<br>";
echo replaceWithCase(" ", ";", "Potato is jumping all over the Place", 10);
echo "<br>";

Potato is jumping all over the GARDEN
Potato is running all over the pLAcE
Potato is cry all over the place
Potato is jumping over the Place
Potato is jumping;all;over;the;Place