字符串替換第一個出現僅與字從一個數組在PHP

Question

$needle = array("Arr","Arr:","Arrang"); 
$haystack = " Arr is the proper way of Arr."; 
echo str_replace($needle, "Arrangement", $haystack); 

打印：Arrangement is the proper way of Arrangement

想要：Arrangement is the proper way of Arr.

Answer 1

嘗試preg_replace。這裏的1表示僅在第一個實例上匹配。 /string/搜索字符串。

$haystack = "Arr is the proper way of Arr."; 
echo preg_replace("/Arr/", "Arrangement", $haystack, 1); 

Answer 2

使用preg_replace與implode和分隔符爲你的陣列。分隔符\s|充當or聲明與正則表達式模式，你的陣列創建：

$needle = array("Arr","Arr:","Arrang"); 
$haystack = "Arr: is the proper way of Arr."; 
echo preg_replace("/".implode("\s|",$needle)."\s/", "Arrangement ", $haystack, 1); 

結果：

Arrangement is the proper way of Arr.