You made it an array of arrays, guaranteeing it will never be NULL. array[j] just calculates array + (j*50), which isn't going to be zero.
If you want to store a null pointer, you'll have to store pointers. Then you get address stored at (base_address + j) which is quite capable of being NULL.
Hello, sorry if this has been posted before but i was wondering if there is a way to run a program until a segmentation fault is found.
Currently i'm using a simple shell script which runs my program 100 times, sleeps 1 second because srand(time(0)) is dependent on seconds. Is there a possible... (1 Reply)
Hello everyone,
I'm writing a program using the id3lib unfortunately I've encountered with memory issue that cause segmentation fault. I tried to rerun and analyze the program with valgrind but it doesn't point me anywhere. I really stuck on this one.
Valgrind output:
==14716== Invalid read of... (2 Replies)
It is my first post, hoping to get help from the forum.
In a directory, I have 5000 multiple files that contains around 4000 rows with 10 columns in each file containing a unique string 'AT' located at 4th column.
OM 3328 O BT 268 5.800 7.500 4.700 0.000 ... (9 Replies)
I have a program that allows users to specify the debug log file location and name.
I have tried using the access() and stat() but they both segfault if the drive say (d:\) is invalid. Both seem to be fine if the drive exists.
Could someone please point me in the direction to a function that... (1 Reply)
hello all,
my question is not about How code can be rewritten, i just wanna know even though i am not using read only memory of C (i have declared str) why this function gives me segfault :wall:and the other code executes comfortably though both code uses same pointer arithmetic.
... (4 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)
attempting the hangman program. This was an optional assignment from the professor. I have completed the logical coding, debugging now.
##I have an array $wordString that initializes to a string of dashes
##reflecting the number of letters in $theWord
##every time the user enters a (valid)... (5 Replies)
I am trying to check multiple server's "uptime" in a loop over "ssh".
When I execute multiple ssh commands with hard coded servernames script is executing fine.
But when I pass server names using while loop, script is exiting after checking first server's status, why?
# serverList... (8 Replies)
Another project, another bump in the road and another chance to learn. I've been trying to open gzipped files and parse data from them and hit a snag. I have data in gzips with a place followed by an ip or ip range sort of like this:
Some place:x.x.x.x-x.x.x.x
I was able to modify some code... (6 Replies)
I will start with an example of what I'm trying to do and then describe how I am approaching the issue.
File
PS028,005
Lexeme HRS # M #
PhraseType 1(1:1) 7(7)
PhraseLab 501 503
ClauseType ZYq0
PS028,005
Lexeme W # L> # BNH # M #... (17 Replies)
Discussion started by: jvoot
17 Replies
LEARN ABOUT PHP
array_replace
ARRAY_REPLACE(3) 1 ARRAY_REPLACE(3)array_replace - Replaces elements from passed arrays into the first arraySYNOPSIS
array array_replace (array $array1, array $array2, [array $...])
DESCRIPTION array_replace(3) replaces the values of $array1 with values having the same keys in each of the following arrays. If a key from the first
array exists in the second array, its value will be replaced by the value from the second array. If the key exists in the second array, and
not the first, it will be created in the first array. If a key only exists in the first array, it will be left as is. If several arrays are
passed for replacement, they will be processed in order, the later arrays overwriting the previous values.
array_replace(3) is not recursive : it will replace values in the first array by whatever type is in the second array.
PARAMETERS
o $array1
- The array in which elements are replaced.
o $array2
- The array from which elements will be extracted.
o $...
- More arrays from which elements will be extracted. Values from later arrays overwrite the previous values.
RETURN VALUES
Returns an array, or NULL if an error occurs.
EXAMPLES
Example #1
array_replace(3) example
<?php
$base = array("orange", "banana", "apple", "raspberry");
$replacements = array(0 => "pineapple", 4 => "cherry");
$replacements2 = array(0 => "grape");
$basket = array_replace($base, $replacements, $replacements2);
print_r($basket);
?>
The above example will output:
Array
(
[0] => grape
[1] => banana
[2] => apple
[3] => raspberry
[4] => cherry
)
SEE ALSO array_replace_recursive(3), array_merge(3).
PHP Documentation Group ARRAY_REPLACE(3)