- I m retreving values from database and wish to use those values later in my shell script. I m placing these values in an array da_data but outside loop array is empty.Problem is its treating array as local inside loop hence array is empty outside loop.
Plz go through the script and suggest how... (1 Reply)
Hi
I have something like
cat $HOME/all_dirs | while read ln_old_dirs
do
if
then
echo "$ln_all_old_dirs"
fi
done
As you know that the variable ln_all_old_dirs is not accessable from outside the... (2 Replies)
Hi everyone:)
I have 2 files - IN & OUT. Example:
IN
A:13:30
B:45:40
.
.
. UNLIMITED
OUT
Z:12:24
Y:20:15
.
.
. UNLIMITED
I want first row of numbers of IN - OUT. Example 13-12 45-20
My code is (2 Replies)
Hi suppose in python I have a list(or array, or tuple, not sure the difference)
How do I loop inside the size of array.
The pseudo code is:
a=
for i = 1 to dim(a)
print a
end
How to find the dimension in python?
Also, anyone has a handbook to suggest so I can borrow from library (1 Reply)
So I'm trying to read datafile into an array, with each line representing one variable in the array. I'm successful at first but somehow it keeps getting erased.
i=0
grep '.*' datafile | while read line
do
echo $i
array=$(echo $line)
echo ${array} #printing array to make sure it's... (5 Replies)
I've got this problem, if I modify an array in the loop and print it, everything is fine as long as I stay in the loop. But, when I print it outside the loop, nothing happens... How can I solve this problem?
Here I prepared a sample for you to see my problem;
zgrw@Rain:~$ cat test
asd
123... (4 Replies)
Hi All,
I am trying to run a do while for an array. And in the do while, I'm trying to get a user response. Depending on the the answer, I go ahead and do something or I move on to next element in the array.
So far I can read the array, but I can't get the if statement to work. Any suggestions... (5 Replies)
Hello All,
Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....?
I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping
through a string containing some of these "Illegal Characters". Now... (5 Replies)
Hi, I have the following problem that is beyond what I can currently do with bash scripting.
In file 1, I have ~ 2500000 values. Note this file is not sorted.
3 19 LABEL_A
3 37 LABEL_B
2 12 LABEL_C
1 15 LABEL_D
I have a list of values in "file 2" ~ 25000 unique lines:
Note -... (6 Replies)
Here's my code:
awk -F '' 'NR==FNR {
if (/time/ && $5>10)
A=$2" "$3":"$4":"($5-01)
else if (/time/ && $5<01)
A=$2" "$3":"$4-01":"(59-$5)
else if (/time/ && $5<=10)
A=$2" "$3":"$4":0"($5-01)
else if (/close/) {
B=0
n1=n2;
... (2 Replies)
Discussion started by: klane
2 Replies
LEARN ABOUT PHP
each
EACH(3) 1 EACH(3)each - Return the current key and value pair from an array and advance the array cursorSYNOPSIS
array each (array &$array)
DESCRIPTION
Return the current key and value pair from an array and advance the array cursor.
After each(3) has executed, the array cursor will be left on the next element of the array, or past the last element if it hits the end of
the array. You have to use reset(3) if you want to traverse the array again using each.
PARAMETERS
o $array
- The input array.
RETURN VALUES
Returns the current key and value pair from the array $array. This pair is returned in a four-element array, with the keys 0, 1, key, and
value. Elements 0 and key contain the key name of the array element, and 1 and value contain the data.
If the internal pointer for the array points past the end of the array contents, each(3) returns FALSE.
EXAMPLES
Example #1
each(3) examples
<?php
$foo = array("bob", "fred", "jussi", "jouni", "egon", "marliese");
$bar = each($foo);
print_r($bar);
?>
$bar now contains the following key/value pairs:
Array
(
[1] => bob
[value] => bob
[0] => 0
[key] => 0
)
<?php
$foo = array("Robert" => "Bob", "Seppo" => "Sepi");
$bar = each($foo);
print_r($bar);
?>
$bar now contains the following key/value pairs:
Array
(
[1] => Bob
[value] => Bob
[0] => Robert
[key] => Robert
)
each(3) is typically used in conjunction with list(3) to traverse an array, here's an example:
Example #2
Traversing an array with each(3)
<?php
$fruit = array('a' => 'apple', 'b' => 'banana', 'c' => 'cranberry');
reset($fruit);
while (list($key, $val) = each($fruit)) {
echo "$key => $val
";
}
?>
The above example will output:
a => apple
b => banana
c => cranberry
Caution
Because assigning an array to another variable resets the original array's pointer, our example above would cause an endless loop
had we assigned $fruit to another variable inside the loop.
Warning
each(3) will also accept objects, but may return unexpected results. It's therefore not recommended to iterate though object proper-
ties with each(3).
SEE ALSO key(3), list(3), current(3), reset(3), next(3), prev(3), foreach, Object Iteration.
PHP Documentation Group EACH(3)