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 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)
Hello!
I have a question about loops and arrays. I'm trying to go through this:
for aa in 01 02 03
OrigNum=$(grep ${Orig} Ba3In2F12.prepos | wc -l)
OrigNum=$((${OrigNum} - 1))
echo ${OrigNum}
etc
It gets stuck on the second line. The error reads:
./asdf: line 30:... (5 Replies)
Hi everyone:)
I have 2 files - IN & OUT. Example:
IN
A:13:30
B:45:40
.
.
. UNLIMITED
OUT
Z:12:24
Y:20:15
.
.
. UNLIMITED
I want first row of numbers of IN - OUT. Example 13-12 45-20
My code is (2 Replies)
Hi suppose in python I have a list(or array, or tuple, not sure the difference)
How do I loop inside the size of array.
The pseudo code is:
a=
for i = 1 to dim(a)
print a
end
How to find the dimension in python?
Also, anyone has a handbook to suggest so I can borrow from library (1 Reply)
I've got this problem, if I modify an array in the loop and print it, everything is fine as long as I stay in the loop. But, when I print it outside the loop, nothing happens... How can I solve this problem?
Here I prepared a sample for you to see my problem;
zgrw@Rain:~$ cat test
asd
123... (4 Replies)
Hello everyone,
I have been in the corporate world for a couple of years now, and I have realized that most successful/semi-productive people are those that are a hybrid between technically proficient in Visualbasic/Access while at the same time in the corporate sphere, meaning Powerpoints and... (2 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)
given an array of filenames files=(*) how can i loop over these in batches of four, or even better, work always with four files simultaneously.
i want do something with these files, always four of them simultaneously, and if one is ready the next should start.
one idea, but definitely not... (2 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
print_r
PRINT_R(3) 1 PRINT_R(3)print_r - Prints human-readable information about a variableSYNOPSIS
mixed print_r (mixed $expression, [bool $return = false])
DESCRIPTION print_r(3) displays information about a variable in a way that's readable by humans.
print_r(3), var_dump(3) and var_export(3) will also show protected and private properties of objects with PHP 5. Static class members will
not be shown.
PARAMETERS
o $expression
- The expression to be printed.
o $return
- If you would like to capture the output of print_r(3), use the $return parameter. When this parameter is set to TRUE, print_r(3)
will return the information rather than print it.
RETURN VALUES
If given a string, integer or float, the value itself will be printed. If given an array, values will be presented in a format that shows
keys and elements. Similar notation is used for objects.
When the $return parameter is TRUE, this function will return a string. Otherwise, the return value is TRUE.
NOTES
Note
When the $return parameter is used, this function uses internal output buffering so it cannot be used inside an ob_start(3) callback
function.
EXAMPLES
Example #1
print_r(3) example
<pre>
<?php
$a = array ('a' => 'apple', 'b' => 'banana', 'c' => array ('x', 'y', 'z'));
print_r ($a);
?>
</pre>
The above example will output:
<pre>
Array
(
[a] => apple
[b] => banana
[c] => Array
(
[0] => x
[1] => y
[2] => z
)
)
</pre>
Example #2
$return parameter example
<?php
$b = array ('m' => 'monkey', 'foo' => 'bar', 'x' => array ('x', 'y', 'z'));
$results = print_r($b, true); // $results now contains output from print_r
?>
SEE ALSO ob_start(3), var_dump(3), var_export(3).
PHP Documentation Group PRINT_R(3)