How can the issue of fwrite() expecting a resource but receiving a boolean be resolved in PHP code?

The issue of fwrite() expecting a resource but receiving a boolean can be resolved by ensuring that the file is successfully opened before attempting to write to it. This can be done by checking if the file opening operation returns a valid resource handle. If the file opening fails, an error message can be displayed or appropriate action taken. 

$file = fopen('example.txt', 'w');
if ($file === false) {
    echo "Error opening file";
} else {
    fwrite($file, "Hello, World!");
    fclose($file);
}

Keywords

fwrite resource boolean error PHP

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