What potential issues can arise when using json_encode in PHP?

One potential issue that can arise when using json_encode in PHP is that it may not handle special characters properly, leading to encoding errors or unexpected output. To solve this issue, you can use the JSON_UNESCAPED_UNICODE flag as a parameter in the json_encode function to ensure that special characters are not escaped. 

$data = array('name' => 'John Döe');
$json = json_encode($data, JSON_UNESCAPED_UNICODE);
echo $json;

Keywords

json_encode PHP encoding data loss serialization

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