What limits the amount of text displayed using print_r with PHP 5.4/Apache2.4

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I've two machines set up with Apache2.4 and PHP5.4.15 and I'm trying to debug owncloud as it has problems with Apache2.4. This autoloader and routing 'fun' seems totally over the top, and is failing without giving any errors, but the question is "what limits the amount of text displayed using print_r() ?" Where I drop in a print statement causes crashes, but when working I'm not getting a complete printout. One machine is clipping at around 4500 characters, while the other is managing around 9000, and neither is displaying the 'TAG' labels after that block.

It's not something I've seen before ... I've been using this method for many years and normally see all the text. So can anybody throw light on why this may be happening now? Interestingly the two machines are giving different problems with this application which works correctly on Apache 2.2

posted Aug 10, 2013 by Jai Prakash

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