How can you check if a specific word is contained within a variable in PHP?

To check if a specific word is contained within a variable in PHP, you can 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. You can use this function to check if the specific word exists within the variable by comparing the result to `false`. 

$variable = "This is a sample string.";
$specific_word = "sample";

if (strpos($variable, $specific_word) !== false) {
    echo "The specific word is contained within the variable.";
} else {
    echo "The specific word is not contained within the variable.";
}

Keywords

strpos in_array strstr preg_match substr_count

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