The error message “property [name] does not exist on this collection instance” typically occurs when you are trying to access or manipulate a property that does not exist on the collection instance you are working with.
Let’s consider an example to understand this better. Suppose you have a collection of students with properties like “id”, “name”, “age”, and “grade”. You are fetching a collection of students from the database and trying to access the “name” property of each student. However, you receive the mentioned error message.
$students = Student::where('grade', '>=', 90)->get();
foreach ($students as $student) {
echo $student->name; // This line throws the error
}
In the above code snippet, the error occurs because the “name” property does not exist on the $students collection instance. Instead, the “name” property is present on each individual student object within the collection.
To resolve this issue, you need to loop through the collection and access the “name” property on each student object individually.
$students = Student::where('grade', '>=', 90)->get();
foreach ($students as $student) {
echo $student->name;
}
By making this change, you will be able to access the “name” property correctly for each student in the collection without triggering the error.