Eclipse does not highlight matching variables

Question

Eclipse does not highlight matching variables for me:

I\'ve already tr

Answer 1

For PHP you can set

window > preferences > PHP > editor > mark occurrences 

Please check first checkbox (Mark occurrences of selected element in the current file)

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And also check

Preferences > General > Editors > Text Editors > Annotations

'Occurrences' and 'Write Occurrences' with different style and color