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Re: Pushing Array ref to array

by hardburn (Abbot)
on Feb 01, 2012 at 16:15 UTC ( #951258=note: print w/replies, xml ) Need Help??


in reply to Pushing Array ref to array

The problem is that each entry in @result is a reference to @row, but because @row is declared at the top of the code, you change the contents of @row each time through. Instead, you need to create a new variable each time through the loop.

This is quite easy:

while (my @row = $sth->fetchrow_array()) { ... }

And you should be able to delete the my @row; line at the top of the code.

Here's something that may help you understand better: Lexical scoping like a fox.


"There is no shame in being self-taught, only in not trying to learn in the first place." -- Atrus, Myst: The Book of D'ni.

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Re^2: Pushing Array ref to array
by packetstormer (Monk) on Feb 01, 2012 at 16:42 UTC
    Thanks to you both. That worked but I really should have known better!
    Thanks again.

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[Cosmic37]: rather than the value of $mydt which is a date time strong such as 2016-01-01 12:30:56
[Corion]: Cosmic37: No, but maybe $mydt doesn't contain what you think it does, or it contains characters that are special in a regular expression? Try if( $line =~ /\Q$mydt\E/) { ... for a literal match
[Cosmic37]: I mean string grrr
[Corion]: Maybe add an else branch in which you print what the values of $line and $mydt are?
[Cosmic37]: ah thank you I will try
[Cosmic37]: you are right $mydt did not contain what I expected... :-D I will now think :-D
[Cosmic37]: crunch...grind... whirr...gnashing metal crunching cogs...

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