str“用字符替换问题”<&引用；及&燃气轮机&引用；在PHP5.2中

当我省略特殊字符“>”和“

htmlentities

编码

”

到

“

时，我使用

PHP5.2

，因此您的

stru replace

不会找到它

---

您不应该在此处使用

htmlentities

。请删除该属性，然后将

html\u实体\u解码

将代码更改为：

<?php
    $old = 'stroke-dasharray="-1"';
    $new = 'stroke-dasharray="none"';
    $ligne = '<path stroke-opacity="1" stroke-miterlimit="1" stroke-linejoin="round" stroke-    linecap="round" stroke-dasharray="-1" stroke-width="1" fill-opacity="0" style="fill-opacity: 0; stroke-width: 1; stroke-linecap: round; stroke-linejoin: round; stroke-miterlimit: 1; stroke-opacity: 1; cursor: move;" d="M179.5,80.5L317.5,80.5" stroke="#808080" fill="none"/>';
    //$ligne = htmlentities($ligne);
    $chaine = str_replace($old, $new, $ligne);
    //$chaine = html_entity_decode($chaine);
    echo "remplacement donne : ".$chaine;
?>

---

当您使用

htmlentities

时，您的替换字符串

$old

将不会在

$ligne

中找到，因此不会进行替换。

如果我删除htmlentities和html\u entity\u decode，则替换将不会生效。

<?php
    $old = 'stroke-dasharray="-1"';
    $new = 'stroke-dasharray="none"';
    $ligne = '<path stroke-opacity="1" stroke-miterlimit="1" stroke-linejoin="round" stroke-    linecap="round" stroke-dasharray="-1" stroke-width="1" fill-opacity="0" style="fill-opacity: 0; stroke-width: 1; stroke-linecap: round; stroke-linejoin: round; stroke-miterlimit: 1; stroke-opacity: 1; cursor: move;" d="M179.5,80.5L317.5,80.5" stroke="#808080" fill="none"/>';
    //$ligne = htmlentities($ligne);
    $chaine = str_replace($old, $new, $ligne);
    //$chaine = html_entity_decode($chaine);
    echo "remplacement donne : ".$chaine;
?>