PHP使用特定模式

Question

我有这些字符串，包含医院和城市的组合。我想分开并获得医院名称。

ABC Hospital (rawalpindi)
ABC Hospital (New) (Rawalpindi)
XYZ Hospital (old) (Lahore)

我想从end分割字符串是一种输出应该是这样的方式。

ABC Hospital
ABC Hospital (New)
XYZ Hospital (old)

Answer 1

利用子字符串制作一个较小的字符串，其最后一个位置为" "。

substr($s1, 0, strripos($s1," "));

使用示例代码：

$s1 = "ABC Hospital (rawalpindi)";
$s2 = "ABC Hospital (New) (Rawalpindi)";
$s3 = "XYZ Hospital (old) (Lahore)";

echo substr($s1, 0, strripos($s1," "));
echo substr($s2, 0, strripos($s2," "));
echo substr($s3, 0, strripos($s3," "));

这将产生输出：

ABC Hospital
ABC Hospital (New)
XYZ Hospital (old)

Answer 2

这是一个简单的正则表达式：

foreach(array('ABC Hospital (rawalpindi)', 'ABC Hospital (New) (Rawalpindi)', 'XYZ Hospital (old) (Lahore))') as $name){
  echo preg_replace('/(.*) \(.*/', '\1', $name) . "\n";
}