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<?php $buffer = -1; function callback($output) { global $buffer; $buffer = $output; return 'R'; } ob_start('callback'); echo 'hello'; //$a = ob_get_contents(); $b = ob_get_clean(); echo $a; echo $b; var_dump($buffer);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $a in /in/qSpvR on line 15 hellostring(5) "hello"

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