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False-positive "Only variables can be passed by reference" for class vars : WI-17580
PHP Fatal error: Only variables can be passed by reference on line 18 · Issue #7 · librespeed/speedtest · GitHub
PHP Fatal error: Only variables can be passed by reference in .../typo3conf/ext/div2007/class.tx_div2007_alpha5.php on line 2744 · Issue #5 · franzholz/div2007 · GitHub
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