How can the error message "Warning: Invalid argument supplied for foreach()" be resolved in the context of the PHP code?

The error message "Warning: Invalid argument supplied for foreach()" occurs when the foreach loop is trying to iterate over a variable that is not an array or an object. To resolve this issue, you should first check if the variable is an array or an object before using it in a foreach loop. 

// Check if the variable is an array or an object before using foreach loop
if(is_array($variable) || is_object($variable)) {
    foreach($variable as $item) {
        // Your code here
    }
} else {
    // Handle the case when $variable is not an array or object
}

Keywords

PHP foreach Invalid argument error message resolution

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