Are there any best practices to follow when checking for the presence of a specific word in a string using PHP functions?

When checking for the presence of a specific word in a string using PHP functions, it is recommended to use the `strpos()` function. This function returns the position of the first occurrence of a substring within a string, or `false` if the substring is not found. To check if a specific word is present in a string, you can use `strpos()` to search for the word and then use a conditional statement to determine if it exists. 

$string = "This is a sample string containing the word 'sample'";
$word = "sample";

if(strpos($string, $word) !== false){
    echo "The word '$word' is present in the string.";
} else {
    echo "The word '$word' is not present in the string.";
}

Keywords

strpos strstr preg_match regular expressions string manipulation

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