正则表达式获取双花括号内的值“{{}}”

Question

正则表达式在PHP中用数组中的“{{}}”获取引用的文本。

对于例如：

$str = "This is sample content with a dynamic value {{value1}} and also have more dynamic values {{value2}}, {{value3}}"; 

需要输出作为像下面阵列，

array(value1,value2,value3); 

Answer 1

这将工作：

$str = "This is sample content with a dynamic value {{value1}} and also have more dynamic values {{value2}}, {{ value3 }}"; 
if (preg_match_all("~\{\{\s*(.*?)\s*\}\}~", $str, $arr)) 
    var_dump($arr[1]); 

OUTPUT：

array(3) { 
    [0]=> 
    string(6) "value1" 
    [1]=> 
    string(6) "value2" 
    [2]=> 
    string(6) "value3" 
} 

Answer 2

使用此：

preg_match_all('~\{\{(.*?)\}\}~', $string, $matches); 
var_dump($matches[1]); 

输出：

array(3) { 
    [0] => 
    string(6) "value1" 
    [1] => 
    string(6) "value2" 
    [2] => 
    string(6) "value3" 
} 

Answer 3

preg_match_all('/\{\{([^}]+)\}\}/', $str, $matches); 
$array = $matches[1];