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How to Get the Calling Function Name in PHP?

Barbara Streisand
Release: 2024-11-20 00:39:03
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How to Get the Calling Function Name in PHP?

How to Obtain the Name of the Calling Function in PHP

While the debug_backtrace function is well-known for providing information about the calling stack, finding a ready-to-use implementation for a function like GetCallingMethodName can be a convenient solution. Ideally, such a function should also return the class of the method when applicable.

Solution:

The most straightforward approach to retrieve the name of the calling function is to utilize debug_backtrace as shown below:

echo debug_backtrace()[1]['function'];
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This line will return the name of the function that called the current function.

Optimization:

As suggested in the comments, the code can be further optimized by specifying arguments to debug_backtrace. For instance:

echo debug_backtrace(!DEBUG_BACKTRACE_PROVIDE_OBJECT|DEBUG_BACKTRACE_IGNORE_ARGS,2)[1]['function'];
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This optimized code:

  • Omits the object and argument indices.
  • Limits the number of stack frames returned to 2.

By making these optimizations, the code becomes more efficient and eliminates unnecessary data from the output.

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