Remove string "Array" from print_r()'s output

Question

How can I remove the string "Array" in the printout from print_r()? I have tried using string replace, but it didn't work.

Example output:

    Array ( 
       [0] => Array (
               [id] => Classify318721363801824
               [classification] => 
                  Array ( 
                        [0] => Array ( 
                                    [Klasifikasi] => NonOpini 
                                    [Nilai] => 0.999946 ) 
                        [1] => Array ( 
                                    [Klasifikasi] => Opini 
                                    [Nilai] => 5.43418e-005 ) )

Maybe you’re looking for something like var_dump or var_export? — Gumbo
– Gumbo, Commented Mar 20, 2013 at 17:57
Why didn't string replace work? What was your code for that? Did you not pass print_r() TRUE as the second argument, thereby causing it to output rather than return a string? — Wiseguy
– Wiseguy, Commented Mar 20, 2013 at 17:59
Are you trying to use print_r() for actual user facing output? Its purpose is debugging. — Michael Berkowski
– Michael Berkowski, Commented Mar 20, 2013 at 17:59
@user2192076, it depends of what you want to get at the end. If just to remove some useless text - then use print_r() with return flag and replace whatever u want. If you need something more complex to do with array elements, then you should write a recursive function to walk through your array and handle with it. — Denis O.
– Denis O., Commented Mar 20, 2013 at 18:16

Denis O. · Accepted Answer · 2013-03-20 18:06:52Z

2

Set return flag (secont func arg) at TRUE for print_r() function to return array print as string, than replace whatever you want using str_replace.

echo str_replace('Array','',print_r($arr,true));

I suppose you also want to replace unneeded new lines. Here's my own func to print arrays nicely.

function aprint($arr, $return = false) {
    $wrap = '<div style=" white-space:pre; position:absolute; top:10px; left:10px; height:200px; width:100px; overflow:auto; z-index:5000;">';
    $wrap = '<pre>';
    $txt = preg_replace('/(\[.+\])\s+=>\s+Array\s+\(/msiU','$1 => Array (', print_r($arr,true));

    if ($return) return  $wrap.$txt.'</pre>';
    else echo $wrap.$txt.'</pre>';
}

edited Mar 20, 2013 at 18:06

answered Mar 20, 2013 at 18:01

Denis O.

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3 Comments

Wiseguy Over a year ago

This is probably what the asker was trying to do. Unfortunately it's an indiscriminate replacement, so any array contents that contain "Array" will also be replaced. That's probably undesirable.

Denis O. Over a year ago

@Wiseguy, thanks for your notice. I've updated my func code to search for an Array string more strictly. It still can be tricked, by I think it isn't really serious issue. Anyway it can be upgraded even further if someone need it.

Crickets Over a year ago

@DenisO. Your preg_replace line is not working for me. It has no effect on the formatting of an associative array.

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