如何在数组中查找包含给定子字符串的元素？

Question

I have 3 strings, I would like to get only the equal strings of them, something like this:

$Var1 = "Sant";
$Array[] = "Hello Santa Claus";   // Name_1
$Array[] = "Santa Claus";         // Name_2

I would like to get both of them because they match "Sant".

With my code I only get Name_2

$len = strlen($Var1);
foreach($Array as $name) 
{
   if (  stristr($Var1, substr($name, 0, $len)))
   {
     echo $name;
   }
}

I understand why I only get Name_2, but I don't know how to solve this situation.

Answer 1

Your code will work too like below:-

foreach ($Array as $name)
{
    if (stristr($name,$Var1)!==false)
    {
        echo $name;
        echo PHP_EOL;
    }
}

Output:- https://eval.in/812376

You can use php strpos() function also for this purpose

foreach($Array as $name) 
{
   if (  strpos($name,$Var1)!==false)
   {
     echo $name;
     echo PHP_EOL;
   }
}

Output:-https://eval.in/812371

Note:- In Both function the first argument is the string in which you want to search the sub-string. And second argument is sub-string itself.