A piece of script from Perl-cookbook I do not understand, and post here for explanation.
The purpose is to find the element in either array (union), and in both array (intersection). Thank you in advance.
How is the third line:
working behind? I am desperate to understand it.
I have a little problem. To keep a configuration simple, I've exceeded my perl knowledge. :-) I've worked with multi-dimentional arrays before, but this one has me beat:
@info = (
{
'defval' => 'abc'
'stats' = (
{ 'name' => 'a', },
{ 'name' =>... (1 Reply)
Hi,i have a code fragment below.
%tag = (); #line 1
$tag{'info'} = $datastring; #line 2
$resp = $ua->request( #$ua is a user agent
POST 'http://10.2.3.0' ,
Content_Type => application/x-www-form-urlencoded
Content => #line 3 I am not sure of what the code... (3 Replies)
suppose my @{$data1{$callid}}; cotains
one two three
three five six
one two three
of random patterns but each item is separated by white space or tab,
Below code extract and get rid of the whitespace perfectly so that it shows now like this
onetwothree
threefivesix... (2 Replies)
Hi all experts,
May I know how to read a csv file and read the content in a hash in PERL?
Currently, I hard-coded and defined it in my code. I wanna know how to make up the %mymap hash thru reading the cfg.txt
====
csv file(cfg.txt):
888,444
999,333
===
#!/usr/bin/perl
my... (1 Reply)
Hi ,
I have an input.txt file that i read
node: id= c1, class=nb, cx=100, cy=100, r=10
node: id=c2, class=b, cx=150, cy=130, r=10
node: id=c3, class=nb, cx=50, cy=80, r=10
node: id=c4, class=nb, cx=120, cy=200, r=10
i split over , and = to create a global array and then passed it to a... (6 Replies)
Hi guys
I have this part of a perl script that returns and odd error
if ($args{software}) {
print " @DISTFILE_GROUPS $output->{distfile_groups}->{ get_rdist_groups}\n";
and the error is
Can't coerce array into hash at
i've never seed this error before, any ideas
thanks... (0 Replies)
How do I get the unique hashes from an array of hashes?
@ar1 = ( {a=>1,b=>2}, {c=>3,d=>4},{a=>1,b=>2});I need :
@ar2 = ( {a=>1,b=>2}, {c=>3,d=>4});Thanks. (2 Replies)
Sorry for the “word salad” subject, but I wanted to cast a wide net for help.
I've created an IP (Internet Protocol) server which serves HTTP, SMTP, and FTP requests.
As you probably know, they all require creating a socket, listening on it, accepting connections, and then having a short... (3 Replies)
Discussion started by: John S.
3 Replies
LEARN ABOUT PHP
array_pop
ARRAY_POP(3) 1 ARRAY_POP(3)array_pop - Pop the element off the end of arraySYNOPSIS
mixed array_pop (array &$array)
DESCRIPTION array_pop(3) pops and returns the last value of the $array, shortening the $array by one element.
Note
This function will reset(3) the array pointer of the input array after use.
PARAMETERS
o $array
- The array to get the value from.
RETURN VALUES
Returns the last value of $array. If $array is empty (or is not an array), NULL will be returned.
ERRORS /EXCEPTIONS
This function will produce an error of level E_WARNING when called on a non-array.
EXAMPLES
Example #1
array_pop(3) example
<?php
$stack = array("orange", "banana", "apple", "raspberry");
$fruit = array_pop($stack);
print_r($stack);
?>
After this, $stack will have only 3 elements:
Array
(
[0] => orange
[1] => banana
[2] => apple
)
and raspberry will be assigned to $fruit.
SEE ALSO array_push(3), array_shift(3), array_unshift(3).
PHP Documentation Group ARRAY_POP(3)