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Full Discussion: comparing variables
Top Forums UNIX for Dummies Questions & Answers comparing variables Post 302337986 by malcomex999 on Sunday 26th of July 2009 06:05:23 PM
Old 07-26-2009
Why don't you try....

Code:
if [ "${ipaddress}" -eq ${ipAddresses[$i]} ]

instead of...

Code:
if [ "$ipaddress" = $ipAddresses[$i] ]

 
Test Your Knowledge in Computers #552
Difficulty: Medium
If variable i has the value 10, after x = 5 + (++i); the value of x after this code is 15.
True or False?

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UASORT(3)								 1								 UASORT(3)

uasort - Sort an array with a user-defined comparison function and maintain index association

SYNOPSIS
bool uasort (array &$array, callable $value_compare_func) DESCRIPTION
This function sorts an array such that array indices maintain their correlation with the array elements they are associated with, using a user-defined comparison function. This is used mainly when sorting associative arrays where the actual element order is significant. Note If two members compare as equal, their relative order in the sorted array is undefined. PARAMETERS
o $array - The input array. o $value_compare_func - See usort(3) and uksort(3) for examples of user-defined comparison functions. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 Basic uasort(3) example <?php // Comparison function function cmp($a, $b) { if ($a == $b) { return 0; } return ($a < $b) ? -1 : 1; } // Array to be sorted $array = array('a' => 4, 'b' => 8, 'c' => -1, 'd' => -9, 'e' => 2, 'f' => 5, 'g' => 3, 'h' => -4); print_r($array); // Sort and print the resulting array uasort($array, 'cmp'); print_r($array); ?> The above example will output: Array ( [a] => 4 [b] => 8 [c] => -1 [d] => -9 [e] => 2 [f] => 5 [g] => 3 [h] => -4 ) Array ( [d] => -9 [h] => -4 [c] => -1 [e] => 2 [g] => 3 [a] => 4 [f] => 5 [b] => 8 ) SEE ALSO
usort(3), The comparison of array sorting functions. PHP Documentation Group UASORT(3)

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