find the specific word in string using PHP

Question

like I have string "I want to buy a cake with $1000"

so if I search by "1000" should be return true, but if I search "100" or "10000" it should be return false

Another example:

"I was enjoying the music" if I search "enjoy" it should be return false, but if I search "enjoying" should be return true

I was trying to use if(strpos($string, $text ) !== false) but it is not working, however it always return true, if the specific word has extra alphabet behind or in front of the word.

strpos will always return true because enjoy is a substring of enjoying. Read more in http://php.net/manual/en/function.strpos.php — Camilo Go Jr., Mar 11 '17 at 04:49

score 1 · Accepted Answer · edited May 23 '17 at 12:10

1

I would look at regular expressions. Here is a link to a similar problem Regular expression to match a whole word There is a section that talks about word boundaries, you'll want to check that out.

edited May 23 '17 at 12:10

Community

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answered Mar 11 '17 at 04:50

bcr666

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score 1 · Answer 2 · answered Mar 14 '17 at 08:21

Try this:

$haystack = "I want to buy a cake with $1000";
if (preg_match('/\$1000$/', $haystack, $match) === 1) {
  echo "Found it: ". $match[0];
}

It is also advised to escape your dollar sign, or put the string inside of single quotes as a safety measure. If there's a word character right after the '$' sign, the parser will try to expand it as a variable (by casting it to a string).

find the specific word in string using PHP

2 Answers2