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Add array_pop(); test and confirm array_pop/array_shift; add comments to each

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function; order functions alphabetically
This commit is contained in:
Miles Lott 2001-12-28 07:07:32 +00:00
parent 38983d71cf
commit 3c70493ae1
1 changed files with 136 additions and 41 deletions
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171
phpgwapi/inc/php3_support_functions.inc.php
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@ -24,27 +24,10 @@
/* $Id$ */
function is_bool($var)
{
$retval = gettype($var) ;
if ( strcmp( $retval, 'unknown type') == 0 )
{
/* Chances are that we have a boolean */
if ($var == True || $var == False)
{
return True;
}
else
{
return False;
}
}
else
{
return False ;
}
}
/* array_keys (PHP 4 >= 4.0.0)
* array array_keys (array input, mixed [search_value])
* array_keys() returns the keys, numeric and string, from the input array.
*/
function array_keys ($arr, $term='')
{
$t = array();
@ -59,6 +42,57 @@
}
}
/* array_pop (PHP 4 >= 4.0.0)
* mixed array_pop (array array)
* array_pop() pops and returns the last value of the array, shortening the array by
* one element. If array is empty (or is not an array), NULL will be returned.
*/
function array_pop(&$array)
{
if(!is_array($array) || @count($array) == 0)
{
return NULL;
}
reset($array);
$rtrn = array();
$i = count($array) + 1;
while(list($key,$value) = each($array))
{
$i--;
if($i == 1)
{
$last = $value;
}
else
{
$rtrn[$key] = $value;
}
}
$array = $rtrn;
return $last;
}
/* array_push
* int array_push (array array, mixed var [, mixed ...])
* array_push() treats array as a stack, and pushes the passed variables onto the end
* of array. The length of array increases by the number of variables pushed. Has the
* same effect as '$array[] = $var;' repeated for each var.
*/
/*
function array_push()
{
}
*/
/* array_reverse (PHP 4 >= 4.0.0)
* array array_reverse (array array [, bool preserve_keys])
* array_reverse() takes input array and returns a new array with the order of the
* elements reversed, preserving the keys if preserve_keys is TRUE.
* Note: The second parameter was added in PHP 4.0.3.
*/
/*
function array_reverse ($array, $preserve_keys = False)
{
@ -70,6 +104,11 @@
}
*/
/* array_search (PHP 4 >= 4.0.5)
* mixed array_search (mixed needle, array haystack [, bool strict])
* Searches haystack for needle and returns the key if it is found in the array, FALSE
* otherwise.
*/
function array_search ($needle, $haystack, $strict = False)
{
@reset($haystack);
@ -83,26 +122,17 @@
return False;
}
function in_array ($needle, $haystack, $strict = False)
{
if(is_array ($haystack) && count($haystack))
{
for(@reset($haystack); $x=each($haystack); )
{
if($needle==$x[1] && (!$strict || gettype($needle)==gettype($x[1])))
{
return True;
}
}
return False;
}
}
/* array_shift (PHP 4 >= 4.0.0)
* mixed array_shift (array array)
* array_shift() shifts the first value of the array off and returns it, shortening the
* array by one element and moving everything down. If array is empty (or is not an
* array), NULL will be returned.
*/
function array_shift(&$array)
{
if(!is_array($array))
if(!is_array($array) || @count($array) == 0)
{
return '';
return NULL;
}
reset($array);
@ -125,6 +155,10 @@
return $one;
}
/* array_unique (PHP 4)
* array array_unique (array array)
* array_unique() takes input array and returns a new array without duplicate values.
*/
function array_unique ($array)
{
reset($array);
@ -145,6 +179,67 @@
return $new_array;
}
/* array_unshift (PHP 4 >= 4.0.0)
* int array_unshift (array array, mixed var, mixed [...])
* array_unshift() prepends passed elements to the front of the array. Note that the
* list of elements is prepended as a whole, so that the prepended elements stay in the
* same order. Returns the new number of elements in the array.
*/
/*
function array_unshift()
{
}
*/
/* in_array (PHP 4 >= 4.0.0)
* bool in_array (mixed needle, array haystack [, bool strict])
* Searches haystack for needle and returns TRUE if it is found in the array, FALSE
* otherwise.
*/
function in_array ($needle, $haystack, $strict = False)
{
if(is_array ($haystack) && count($haystack))
{
for(@reset($haystack); $x=each($haystack); )
{
if($needle==$x[1] && (!$strict || gettype($needle)==gettype($x[1])))
{
return True;
}
}
return False;
}
}
/* is_bool (PHP 4 >= 4.0.0)
* bool is_bool (mixed var)
* is_bool -- Finds out whether a variable is a boolean
*/
function is_bool($var)
{
$retval = gettype($var) ;
if ( strcmp( $retval, 'unknown type') == 0 )
{
/* Chances are that we have a boolean */
if ($var == True || $var == False)
{
return True;
}
else
{
return False;
}
}
else
{
return False ;
}
}
/* str_repeat (PHP 4 >= 4.0.0)
* string str_repeat (string input, int multiplier)
* Returns input_str repeated multiplier times. multiplier has to be greater than 0.
*/
function str_repeat($input,$multiplier)
{
for($i=0,$output='';$i<$multiplier;$i++)