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<?php $string = "<img /><img />'; $i = -1; $test = preg_replace_callback( '/<img /', function($matches){ $i++; return "<imgonclick"; },$string); print_r( $test );
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.6
Parse error: syntax error, unexpected '"' in /in/XOqok on line 7
Process exited with code 255.

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