I am facing a strange error while creating posix threads:
Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output.
Snippet 1
This works:
--------------
int *threadids;
threadids = (int *) malloc (num_threads * sizeof(int));
... (4 Replies)
Hi,
can I use array elements ( all ) in conditional statements?
the problem is ,the total number of elements is not known.
e.g
A is an array with elements - 1,2,3
now if i want to test if the 1 st field of input record is either 1,2 or 3, i can do something like this
if ( $1 ~... (1 Reply)
Hi,
I want to check a particular string inserted by User to be checked against the values i already have in a ARRAY string using IF condition. Is this possible? if yes how to do that.
example :
i have a,b,c,d,e,f values in a array called values
i asked user to enter a value:
user entered... (2 Replies)
Hello,
I want to check if all element of an array have the same value regardless the length of the array.
example:
@array1 = qw(44 44 44 44);
@array2 = qw(55 55 55 55 55 55 55);
Please advice,
Ahmed (11 Replies)
Executed the following if conditions .. and got different results .
only (( )) gave correct o/p with all scenarios .
Can anybody please let me know what is the difference between and ] and ((condition)) when used with if condition.
And why each condition gave different result.
1.... (2 Replies)
hi,
I have some problems in my simple script about the redirect echo stdout command inside a condition. Why is the echo command inside the elif still execute in the else command
Here are my simple script
After check on the two diff output the echo stdout redirect is present in two diff... (3 Replies)
I have an array and two variables as below,
I need to check if $datevar is present in $filename.
If so, i need to replace $filename with the values in the array.
I need the output inside an ARRAY
How can this be done.
Any help will be appreciated. Thanks in advance. (2 Replies)
Hello experts,
I'm stuck with this script for three days now. Here's what i need.
I need to split a large delimited (,) file into 2 files based on the value present in the last field.
Samp: Something.csv
bca,adc,asdf,123,12C
bca,adc,asdf,123,13C
def,adc,asdf,123,12A
I need this split... (6 Replies)
HI
My doubt may be basic one but I need to get it clarified..
When i use "if" condition that checks for many AND, OR logical conditions
like
if ]; then
return 0
fi
Even the if condition fails it returns as zero.. Any clue..
But if i add else condition like
if ]; ... (2 Replies)
I want to build an Errorlog. I would like to build an array as I move through the if statements and print the array once all error conditions have been defined. The results need to be comma delimited.
tsver will be static "1.9.6(2)"
other vars $prit $lt $rt can have the same or a different... (1 Reply)
Discussion started by: popeye
1 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)