Are there any specific PHP functions or methods that can help prevent issues like "Invalid argument supplied for foreach()" when working with arrays in loops?

The "Invalid argument supplied for foreach()" error occurs when trying to iterate over a non-array variable with a foreach loop. To prevent this issue, you can use the is_array() function to check if the variable is an array before using it in a foreach loop. 

if (is_array($arrayVariable)) {
    foreach ($arrayVariable as $item) {
        // Code to process each item in the array
    }
} else {
    // Handle the case where $arrayVariable is not an array
}

Keywords

PHP foreach array error handling type checking

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