How can PHP developers effectively debug and troubleshoot issues related to string comparison errors?

String comparison errors in PHP can be effectively debugged and troubleshooted by ensuring that the strings being compared are of the same data type and encoding. Developers should also check for any leading or trailing whitespaces that might affect the comparison results. Using functions like trim() to remove whitespaces and strcmp() for accurate string comparisons can help resolve these issues. 

$string1 = "Hello";
$string2 = "hello";

// Case-insensitive string comparison
if (strcasecmp($string1, $string2) == 0) {
    echo "Strings are equal.";
} else {
    echo "Strings are not equal.";
}

Keywords

PHP string comparison debugging troubleshooting errors

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