recognize hash tags in twitter statuses

So I am parsing twitter statuses using PHP and I want to write code that recognizes whether the person added a specific tag (#php). The code always searches for the #php tag and determines whether the person added th开发者_开发知识库e tag. I am only searching for the #php tag. How can I write such a code in PHP?

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With preg_match():

$has_php = preg_match('/#php\b/i', $tweet);

It's case-insensitive.

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$has_hash = (boolean) strpos($status, '#php');

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This solution is based on @daGrevis ones, but fixes two bugs:

$has_hash = (($has_hash = stripos($status, '#php')) !== false && $has_hash >= 0);

This will also return true if the $status begins with #php. If you use just strpos, it would return false, since it's position is 0 (== false) and it also returns true if #Php or something is found (case insensitive).