What does the error "Invalid argument supplied for foreach()" in PHP typically indicate?

The error "Invalid argument supplied for foreach()" in PHP typically indicates that the function foreach() was called with an argument that is not an array or an object that implements the Traversable interface. To solve this issue, you should ensure that the argument passed to foreach() is indeed an array or an object that can be iterated over. 

// Check if the argument is an array before using foreach
if(is_array($your_argument)) {
    foreach($your_argument as $item) {
        // Your code here
    }
} else {
    // Handle the case where $your_argument is not an array
}

Keywords

Invalid argument foreach() PHP error indication

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