How can the use of labels or tags in PHP code affect the results of string searching functions like strpos?

When using labels or tags in PHP code, it can affect the results of string searching functions like strpos because the presence of these additional characters can alter the position of the substring within the string. To solve this issue, you can use the strip_tags function to remove any HTML or PHP tags from the string before performing the search. 

$string = "<h1>Hello, World!</h1>";
$substring = "Hello";
$strippedString = strip_tags($string);
$position = strpos($strippedString, $substring);

if ($position !== false) {
    echo "Substring found at position: " . $position;
} else {
    echo "Substring not found";
}

Keywords

labels tags PHP code string searching functions strpos

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