Answers for "check text in string php"

php find if substring is in string

$result = strpos("haystack", "needle");

if ($result != false)
{
  // text found
}

php check string

// if you want to test content of a string to match a model

//You should use a regex filter with preg_match who returns 1 or 0

// this filter works for most of cases

/* use this regex */ preg_match("/^[a-z ,.'-]+$/i", your_string);

if you want more regex filters you can make yours on 'https://regex101.com/'