Hi Friends,
I am having some trouble reading into an array. Basically, I am trying to grep for a pattern and extract it's value and store the same into an array. For eg., if my input is:
<L:RECORD>name=faisel farooq,age=21,
company=TCS,project=BT</L:RECORD>
<L:RECORD>name=abc... (1 Reply)
Hi All,
I have a file which is having 3 columns as (string string integer)
a b 1
x y 2
p k 5
y y 4
.....
.....
Question:
I want get the unique value of column 2 in a sorted way(on column 2) and the sum of the 3rd column of the corresponding rows. e.g the above file should return the... (6 Replies)
Could anybody help with this?
I have input below .....
david,39
david,39
emelie,40
clarissa,22
bob,42
bob,42
tim,32
bob,39
david,38
emelie,47
what i want to do is count how many names there are with different ages, so output would be like this ....
david,2
emelie,2
clarissa,1... (3 Replies)
Hi
I have the following info in a file -
<Cell id="25D"/>
<Cell id="26A"/>
<Cell id="26B"/>
<Cell id="26C"/>
<Cell id="27A"/>
<Cell id="27B"/>
<Cell id="27C"/>
<Cell id="28A"/>
I would like to know how would you go about counting all... (4 Replies)
Hi !
input:
A|B|C|D
A|F|C|E
A|B|I|C
A|T|I|B
As the title of the thread says, I would need to get:
1|3|2|4
I tried different variants of this command, but I don't manage to obtain what I need:
gawk 'BEGIN{FS=OFS="|"}{for(i=1; i<=NF; i++) a++} END {for (b in a) print b}' input
... (2 Replies)
Hi, I have tab-deliminated data similar to the following:
dot is-big 2
dot is-round 3
dot is-gray 4
cat is-big 3
hot in-summer 5
I want to count the frequency of each individual "unique" value in the 1st column. Thus, the desired output would be as follows:
dot 3
cat 1
hot 1
is... (5 Replies)
Hello Team,
I need your help on the following:
My input file a.txt is as below:
3330690|373846|108471
3330690|373846|108471
0640829|459725|100001
0640829|459725|100001
3330690|373847|108471
Here row 1 and row 2 of column 1 are identical but corresponding column 2 value are... (4 Replies)
Hello experts,
I am converting a number into its binary output as :
read n
echo "obase=2;$n" | bc
I wish to count the maximum continuous occurrences of the digit 1.
Example :
1. The binary equivalent of 5 = 101. Hence the output must be 1.
2. The binary... (3 Replies)
Hi,
tab-separated input:
blabla_1 A,B,C,C
blabla_2 A,E,G
blabla_3 R,Q,A,B,C,R,Q
output:
blabla_1 3
blabla_2 3
blabla_3 5
After splitting $2 in an array, I am trying to store the number of unique elements in a variable, but have some difficulties resetting the variable to 0 before... (6 Replies)
Hello,
I am trying to count unique rows in my file based on 4 columns (2-5) and to output its frequency in a sixth column. My file is tab delimited
My input file looks like this:
Colum1 Colum2 Colum3 Colum4 Coulmn5
1.1 100 100 a b
1.1 100 100 a c
1.2 200 205 a d
1.3 300 301 a y
1.3 300... (6 Replies)
Discussion started by: nans
6 Replies
LEARN ABOUT PHP
array_column
ARRAY_COLUMN(3) 1 ARRAY_COLUMN(3)array_column - Return the values from a single column in the input arraySYNOPSIS
array array_column (array $array, mixed $column_key, [mixed $index_key = null])
DESCRIPTION array_column(3) returns the values from a single column of the $array, identified by the $column_key. Optionally, you may provide an
$index_key to index the values in the returned array by the values from the $index_key column in the input array.
PARAMETERS
o $array
- A multi-dimensional array (record set) from which to pull a column of values.
o $column_key
- The column of values to return. This value may be the integer key of the column you wish to retrieve, or it may be the string
key name for an associative array. It may also be NULL to return complete arrays (useful together with $index_key to reindex the
array).
o $index_key
- The column to use as the index/keys for the returned array. This value may be the integer key of the column, or it may be the
string key name.
RETURN VALUES
Returns an array of values representing a single column from the input array.
EXAMPLES
Example #1
Get column of first names from recordset
<?php
// Array representing a possible record set returned from a database
$records = array(
array(
'id' => 2135,
'first_name' => 'John',
'last_name' => 'Doe',
),
array(
'id' => 3245,
'first_name' => 'Sally',
'last_name' => 'Smith',
),
array(
'id' => 5342,
'first_name' => 'Jane',
'last_name' => 'Jones',
),
array(
'id' => 5623,
'first_name' => 'Peter',
'last_name' => 'Doe',
)
);
$first_names = array_column($records, 'first_name');
print_r($first_names);
?>
The above example will output:
Array
(
[0] => John
[1] => Sally
[2] => Jane
[3] => Peter
)
Example #2
Get column of last names from recordset, indexed by the "id" column
<?php
// Using the $records array from Example #1
$last_names = array_column($records, 'last_name', 'id');
print_r($last_names);
?>
The above example will output:
Array
(
[2135] => Doe
[3245] => Smith
[5342] => Jones
[5623] => Doe
)
PHP Documentation Group ARRAY_COLUMN(3)