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Request #55149 Limit the result of print_r() to facilitate debugging
Submitted: 2011-07-06 11:51 UTC Modified: 2017-09-10 21:07 UTC
Votes:2
Avg. Score:3.0 ± 2.0
Reproduced:0 of 0 (0.0%)
From: victor at cmp dot es Assigned:
Status: Suspended Package: Variables related
PHP Version: Irrelevant OS: Irrelevant
Private report: No CVE-ID: None
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 [2011-07-06 11:51 UTC] victor at cmp dot es 
Description:
------------
You could add an additional third parameter to print_r() function in order to limit the nesting level of output.
Instead of showing all levels of nested arrays/objects, it could be limited to N nesting levels.
If I only want to know my simple class member variables (with 3 or 4 of them) of an object but the object has members with "references/alias" to other big objects/classes, the screen is filled with a lot of (in this case) useless information.
If I could limit in this case the output to 1 or 2 nesting levels it would be much easier for me to debug.
If this third parameter were ommitted or zero, the whole tree would be shown (as done now).

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 [2011-07-07 02:31 UTC] lenzai2004-dev at yahoo dot com 
Why not writing your own custom php function for that purpose ?
Also for debugging var_dump is sometimes more useful than print_r.
 [2012-01-23 22:54 UTC] gmblar+php at gmail dot com 
Try xdebug_var_dump http://xdebug.org/docs/all_functions#xdebug_var_dump for a 
limited output.
 [2017-09-10 21:07 UTC] cmb@php.net
-Status: Open +Status: Suspended -Package: Class/Object related +Package: Variables related
 [2017-09-10 21:07 UTC] cmb@php.net 
Apparently, this proposal is controversial and as such would
require an RFC, see <https://wiki.php.net/rfc>. Everybody is
welcome to create a respective RFC; if you do so please refer to
this feature request. In the meantime, I'm suspending this ticket.
 
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