關(guān)于過濾標(biāo)題中單雙引號的問題，求幫助

1. addslashes
2. htmlspecialchars
3. htmlentities

看一下這三個用法，用特別的符號處理，

你如果是中文的話就用正則替換吧

$str = 'A:"How are you" B:"I am fine", "';

echo $str."\n";

$str = preg_replace('/"([^"]*)"/', '“${1}”', $str);

echo $str."\n";

正則替換即可

$text = "sf.gg''“” 123123";
$result = preg_replace("/('|“|”)/i", "", $text);
echo $result;

<?php
$str = '"\'“‘';
$str = preg_replace('/“|‘|"|\'/i', '', $str);
echo $str;