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Re: Purpose for a str_replace with an embedded print_r return

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Dave Patoch wrote:

[restored context]

> Christoph M. Becker wrote:
>> Dave Patoch wrote: 
>>> foreach(
>>>    explode("\n", str_replace("\r\n", "\n", print_r($message, true))) as 
>>>    $msg)
>>>
>>> and
>>> 
>>> foreach(
>>>    explode("\n", str_replace("\r\n", "\n", $message)) as $msg)
>>
>> What type of value does $message hold?
> 
> It's just a plain old string, which is why it confused me.

I think the proper idiom is “to kill two birds with one stone”.  This 
appears to be debug code, and if you pass “true” as second parameter to 
print_r(), it returns the output instead of printing it.

<http://php.net/print_r>

The major advantage of print_r() over echo and print(), which always output 
the *string representation* of a value, is that the type of the first 
parameter does not matter for inspection: if it is a string or a number, the 
result is a string or number; if it is an array, it contains the array keys 
and values; and if it is a reference to an object, it contains the object's 
class name and properties.  var_dump()'s output is more detailed than 
print_r()'s on the one hand, and trimmed at a point on the other, and 
highlighting can be applied to that with Xdebug; but it cannot return the 
output instead (you would have to output_buffer it yourself).

<http://php.net/echo>
<http://php.net/print>
<http://php.net/manual/en/language.oop5.magic.php#object.tostring>
<http://php.net/var_dump>
<http://xdebug.org/>

str_replace() then normalizes the value so that it can be explode()d, for 
“foreach” iteration, without using regular expressions.  This does not 
account for Mac OS < 10.x newlines ("\r"), but there does not appear to be a 
PHP release for those versions (anymore).

<http://php.net/str_replace>
<http://php.net/manual/en/install.php>


You are _not_ posting to a Web forum or bulletin board here, but to a Usenet 
newsgroup where postings are read differently than in the Google Groups Web 
archive, and where they usually expire.  Therefore, please provide 
attribution of quoted material, and a minimum of the context.

<http://www.netmeister.org/news/learn2quote.html>

-- 
PointedEars
Zend Certified PHP Engineer
Twitter: @PointedEars2
Please do not Cc: me. / Bitte keine Kopien per E-Mail.

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Thread

Purpose for a str_replace with an embedded print_r return Dave Patoch <earthlydilemma@gmail.com> - 2014-11-04 06:20 -0800
  Re: Purpose for a str_replace with an embedded print_r return "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-11-04 16:08 +0100
    Re: Purpose for a str_replace with an embedded print_r return Dave Patoch <earthlydilemma@gmail.com> - 2014-11-04 07:27 -0800
      Re: Purpose for a str_replace with an embedded print_r return Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-11-04 16:58 +0100
        Re: Purpose for a str_replace with an embedded print_r return "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-11-04 18:58 +0100
          Re: Purpose for a str_replace with an embedded print_r return Jerry Stuckle <jstucklex@attglobal.net> - 2014-11-04 13:54 -0500
            Re: Purpose for a str_replace with an embedded print_r return Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-11-05 14:27 +0100
              Re: Purpose for a str_replace with an embedded print_r return Jerry Stuckle <jstucklex@attglobal.net> - 2014-11-05 08:46 -0500
                Re: Purpose for a str_replace with an embedded print_r return Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-11-05 15:32 +0100
                Re: Purpose for a str_replace with an embedded print_r return Jerry Stuckle <jstucklex@attglobal.net> - 2014-11-05 10:44 -0500
                Re: Purpose for a str_replace with an embedded print_r return Matthew Carter <m@ahungry.com> - 2014-11-05 15:50 -0500
                Re: Purpose for a str_replace with an embedded print_r return Jerry Stuckle <jstucklex@attglobal.net> - 2014-11-05 16:59 -0500
                Re: Purpose for a str_replace with an embedded print_r return "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-11-05 23:56 +0100
                Re: Purpose for a str_replace with an embedded print_r return Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-11-06 04:30 +0100
                Re: Purpose for a str_replace with an embedded print_r return Jerry Stuckle <jstucklex@attglobal.net> - 2014-11-05 22:53 -0500
  Re: Purpose for a str_replace with an embedded print_r return Denis McMahon <denismfmcmahon@gmail.com> - 2014-11-05 15:07 +0000
    Re: Purpose for a str_replace with an embedded print_r return Jerry Stuckle <jstucklex@attglobal.net> - 2014-11-05 10:47 -0500
      Re: Purpose for a str_replace with an embedded print_r return Matthew Carter <m@ahungry.com> - 2014-11-05 15:51 -0500
        Re: Purpose for a str_replace with an embedded print_r return Jerry Stuckle <jstucklex@attglobal.net> - 2014-11-05 17:00 -0500
          Re: Purpose for a str_replace with an embedded print_r return Matthew Carter <m@ahungry.com> - 2014-11-05 22:35 -0500
            Re: Purpose for a str_replace with an embedded print_r return Jerry Stuckle <jstucklex@attglobal.net> - 2014-11-05 22:55 -0500
            Re: Purpose for a str_replace with an embedded print_r return Denis McMahon <denismfmcmahon@gmail.com> - 2014-11-06 04:26 +0000
              Re: Purpose for a str_replace with an embedded print_r return Matthew Carter <m@ahungry.com> - 2014-11-06 00:09 -0500
                Re: Purpose for a str_replace with an embedded print_r return Denis McMahon <denismfmcmahon@gmail.com> - 2014-11-06 23:59 +0000
            Re: Purpose for a str_replace with an embedded print_r return "Christoph M. Becker" <cmbecker69@arcor.de> - 2014-11-06 18:43 +0100
        Re: Purpose for a str_replace with an embedded print_r return Denis McMahon <denismfmcmahon@gmail.com> - 2014-11-06 02:39 +0000
      Re: Purpose for a str_replace with an embedded print_r return Denis McMahon <denismfmcmahon@gmail.com> - 2014-11-06 02:44 +0000
        Re: Purpose for a str_replace with an embedded print_r return Jerry Stuckle <jstucklex@attglobal.net> - 2014-11-05 22:56 -0500

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