I'm trying to assign variables that include the current value of a count, but I can't seem to get it working... this script is incomplete, but some guidance on how to use a dynamic variable would be helpful:
Sample Input:
Like I said, this is incomplete and there may be more efficient ways of doing this, but I need help with the denoted portion:
I was just thinking if there is a way where i can dynamically rename files based on the actual file content.
I have a load of pdf's which have been named wrongly. (We normally put date first, then brief description, then title)
So can a script be written wherin, it pulls out the date and title... (2 Replies)
Hi,
I need a script that will run a dynamic Oracle SQL. Dynamic meaning the SQL statement depends on the parameter.
For instance, something like this:
#!/bin/ksh -x
# Set environment
. /home/mine/set_vars
sqlplus $LOGINID <<! >> /home/mine/log.txt
select count(1) from $1
where... (2 Replies)
Hi All
I've very nearly finished this script I'm working on but have hit another idiots problem, after googling I can't see a solution for this one.
I have a while count loop that checks checks two consecutive values then increments the count by two.
What the script has to do is then check... (5 Replies)
Hi I have to run the script (a part of the code) in a loop for the no of times the files present in the directory, by taking one file and process and next another file.
For example, if we do ls and the result have:
$ls
abc.dat def.dat ghi.dat
The script code should loop for 3... (4 Replies)
I am attempting to create a script that would allow me to list all the instances associated with a DB2 and then prompt the user to choose which one to issue the db2profile command against. I use the db2 command db2ilist to get a list of the instances for a particular server, but the number of... (1 Reply)
I am attempting to create a script that would allow me to list all the instances associated with a DB2 and then prompt the user to choose which one to issue the db2profile command against. I use the db2 command db2ilist to get a list of the instances for a particular server, but the number of... (7 Replies)
I have a small program which needs to pass variable dynamically to form the name of a second variable whose value wil be passed on to a third variable.
***************** Program Start ******************
LOC1=/loc1
PAT1IN=/loc2
PAT2IN=/loc3
if ; then
for fpattern in `cat... (5 Replies)
Hello,
i want built a log analyzer for nginx. Okay and i use it as training for the shell tools. The most what i want i could relize. But i has trouble with dynamic things. I have the IP address extracted and has set the geo localtion for the ip.
I would like to count the countries. With... (3 Replies)
Discussion started by: sisihagen
3 Replies
LEARN ABOUT PHP
count
COUNT(3) 1 COUNT(3)count - Count all elements in an array, or something in an objectSYNOPSIS
int count (mixed $array_or_countable, [int $mode = COUNT_NORMAL])
DESCRIPTION
Counts all elements in an array, or something in an object.
For objects, if you have SPL installed, you can hook into count(3) by implementing interface Countable. The interface has exactly one
method, Countable::count, which returns the return value for the count(3) function.
Please see the Array section of the manual for a detailed explanation of how arrays are implemented and used in PHP.
PARAMETERS
o $array_or_countable
- An array or Countable object.
o $mode
- If the optional $mode parameter is set to COUNT_RECURSIVE (or 1), count(3) will recursively count the array. This is particu-
larly useful for counting all the elements of a multidimensional array.
Caution
count(3) can detect recursion to avoid an infinite loop, but will emit an E_WARNING every time it does (in case the array
contains itself more than once) and return a count higher than may be expected.
RETURN VALUES
Returns the number of elements in $array_or_countable. If the parameter is not an array or not an object with implemented Countable inter-
face, 1 will be returned. There is one exception, if $array_or_countable is NULL, 0 will be returned.
Caution
count(3) may return 0 for a variable that isn't set, but it may also return 0 for a variable that has been initialized with an empty
array. Use isset(3) to test if a variable is set.
EXAMPLES
Example #1
count(3) example
<?php
$a[0] = 1;
$a[1] = 3;
$a[2] = 5;
$result = count($a);
// $result == 3
$b[0] = 7;
$b[5] = 9;
$b[10] = 11;
$result = count($b);
// $result == 3
$result = count(null);
// $result == 0
$result = count(false);
// $result == 1
?>
Example #2
Recursive count(3) example
<?php
$food = array('fruits' => array('orange', 'banana', 'apple'),
'veggie' => array('carrot', 'collard', 'pea'));
// recursive count
echo count($food, COUNT_RECURSIVE); // output 8
// normal count
echo count($food); // output 2
?>
SEE ALSO is_array(3), isset(3), strlen(3).
PHP Documentation Group COUNT(3)