Prevent Delete of Master Record If Child Record Exist PHP Script


Prevent Delete of Master Record If Child Record Exist PHP Script

In this tutorial will see how to prevent delete from a parent/master record if data exist on another or related table. For this example, I have used programme and course table to prevent deletion of data in programme table, if programme name is available on course table. In this case, I have map the one-to-many relationship between programme table and course table.

 

 

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