In the DOS era I used a text editor (forgot the name) which had a outstanding feature. Whenever i was over a function call, hitting a key combination it took me to the function definition. Also, when I was in the function definition, I was able to see all calls to that function. Something like

这一职能来自:

• function1, line 154, source1.c
• function3, line 500, source2.c

我爱这个特点,我错了。 是否有任何实际编辑具有类似的特点?

窗户一米,但如果我能够履行这一职能,即能够购买玉米:-D(dding)。

Update I m using php. My example was with .c files because I used that editor with c