if includes php code example

Example 1: php check if string contains word

$myString = 'Hello Bob how are you?';
if (strpos($myString, 'Bob') !== false) {
    echo "My string contains Bob";
}

Example 2: php find if substring is in string

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

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

Example 3: check if includes numbers php

if (preg_match('~[0-9]+~', $string)) {
    echo 'string with numbers';
}

Example 4: contains php

if (strpos($a, 'are') !== false) {
    echo 'true';
}