Is there anyway that I can compare two Arrays to see if any new strings have been added in them? eg:
Array 1: Joe Bob Jane
Array 2: Joe Bob Jane Greg
It would then output a new array with the changes:
Array 3: Greg
I'm not very good at shell scripting, and my google and forum searches... (4 Replies)
I want to append a decimal number to a string. But I want to restrict the number to only 2 decimal points
for e.g:
my $output = "\n The number is = ";
my $number = 2.3333333;
$output = $output . $number;
But I want the $output as: "The number is = 2.33"; and not 2.3333333
(I do not... (1 Reply)
Hi there,
im having issue with comparing two variables, in a bash script.
im trying to do the following:
- get a word from user 1
- split the word into array
- get a character from user2
trying to compare the character entered by user 2 with every single character in the array... (2 Replies)
Hi all,
I am trying to compare two arrays in perl using the following code.
foreach $item (@arrayA){
push(@arrayC, $item) unless grep(/$item/, @arrayB); ... (1 Reply)
I am totally new to perl. I am modifying someone else's script. I have the following output:
# ./some-perlscript
A
B
C
D
E
B - E, is generated through the print command that I put in the script. I want to remove A, it seems it is generated automatically by a custom OS it is querying when... (3 Replies)
if i declare both but don't input any variables what values will the int array and file pointer array have on default, and if i want to reset any of the elements of both arrays to default, should i just set it to 0 or NULL or what? (1 Reply)
Problem
Part 1.
Gather data from linux server and output to a file named data_DDMMYY
Output file must contain the file name and size
Part 2.
Compare todays data_DDMMYY to yesterdays data_DDMMYY and output results to a file named difference_DDMMYY
Output file must show the difference in... (3 Replies)
Hi ,
I just write a simple function to read the file line by line.
But when I run it it says out of memory.
I am not sure about the root cause, Can someone help me out of this?
:D
#! /usr/bin/perl
use strict;
sub checkAPs{
my $NDPDir = "/home/eweiqqu/NCB/NDP_files/";
... (1 Reply)
I'm trying to compare 2 array and print the difference at a 3rd file. However how am i going to compare this 2 arrays by ignoring certain patterns:
For example:
1st array contains:
ctahci
cptcsa0
ctsata:25:seed
cptcsa1:50:seed
ctsata_1:25:seed
2nd array contains:
cptcsa0
ctsata... (0 Replies)
Hello,
I'm completely new to Perl and I'm just looking for a quick answer to some code I'm trying to come up with. I'm trying to access a website, part of the URL I want the user to be able to define via standard input. As you can see below I'm still trying to get the syntax.
... (2 Replies)
Discussion started by: wxornot
2 Replies
LEARN ABOUT PHP
array_diff_assoc
ARRAY_DIFF_ASSOC(3) 1 ARRAY_DIFF_ASSOC(3)array_diff_assoc - Computes the difference of arrays with additional index checkSYNOPSIS
array array_diff_assoc (array $array1, array $array2, [array $...])
DESCRIPTION
Compares $array1 against $array2 and returns the difference. Unlike array_diff(3) the array keys are also used in the comparison.
PARAMETERS
o $array1
- The array to compare from
o $array2
- An array to compare against
o $...
- More arrays to compare against
RETURN VALUES
Returns an array containing all the values from $array1 that are not present in any of the other arrays.
EXAMPLES
Example #1
array_diff_assoc(3) example
In this example you see the "a" => "green" pair is present in both arrays and thus it is not in the output from the function.
Unlike this, the pair 0 => "red" is in the output because in the second argument "red" has key which is 1.
<?php
$array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");
$array2 = array("a" => "green", "yellow", "red");
$result = array_diff_assoc($array1, $array2);
print_r($result);
?>
The above example will output:
Array
(
[b] => brown
[c] => blue
[0] => red
)
Example #2
array_diff_assoc(3) example
Two values from key => value pairs are considered equal only if (string) $elem1 === (string) $elem2 . In other words a strict check
takes place so the string representations must be the same.
<?php
$array1 = array(0, 1, 2);
$array2 = array("00", "01", "2");
$result = array_diff_assoc($array1, $array2);
print_r($result);
?>
The above example will output:
Array
(
[0] => 0
[1] => 1
)
NOTES
Note
This function only checks one dimension of a n-dimensional array. Of course you can check deeper dimensions by using, for example,
array_diff_assoc($array1[0], $array2[0]);.
Note
Ensure you pass arguments in the correct order when comparing similar arrays with more keys. The new array should be the first in
the list.
SEE ALSO array_diff(3), array_diff_uassoc(3), array_udiff_assoc(3), array_udiff_uassoc(3), array_intersect(3), array_intersect_assoc(3).
PHP Documentation Group ARRAY_DIFF_ASSOC(3)