What steps can be taken to troubleshoot issues when data comparison fails in PHP?

When data comparison fails in PHP, it could be due to differences in data types or unexpected values. To troubleshoot this issue, you can use the strict comparison operator (===) instead of the loose comparison operator (==) to ensure both the value and data type match. Additionally, you can use functions like var_dump() or print_r() to inspect the data being compared. 

// Example code snippet to troubleshoot data comparison issues in PHP
$data1 = 10;
$data2 = "10";

// Using strict comparison operator to compare data
if ($data1 === $data2) {
    echo "Data matches with strict comparison.";
} else {
    echo "Data does not match with strict comparison.";
}

// Using var_dump to inspect data types
var_dump($data1);
var_dump($data2);

Keywords

data comparison troubleshooting PHP debugging error handling

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