Jim Lucas wrote:
Marc Weber wrote:
Does this script cause a segmentation fault running on your php
interpreter, too?
============= =======================================================
<?php
function fa()
{
$res = array();
foreach(func_get_args() as $a)
if (is_array($a)){
foreach(fa($a) as $a2)
$res[]=$a2;
}else
$res[]=$a;
return $res;
}
var_dump(fa(array(1,2),array(array(3,4),array(5,6))));
?>
============= =======================================================
My version:
marc@localhost ~ $ php -v
PHP 5.1.6-pl6-gentoo (cli) (built: Feb 11 2007 02:37:11)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
This function should take all elements in all arrays and flatten them
down to one array.
Thus the result of the example above should be
array(1,2,..,6)
Marc
Try this:
<plaintext><?php
function fa() {
foreach ( func_get_args() AS $arg ) {
if ( is_array($arg) ) {
foreach( $arg AS $value ) {
flatten_array( $value );
}
} else {
$GLOBALS['master_arr'][] = $arg;
}
}
}
$GLOBALS['master_arr'] = array();
fa(array(1,2),array(array(3,4),array(5,6)));
print_r($GLOBALS['master_arr']);
?>
This does not preserve array keys, but you didn't mention wanting to
preserve them.
Off the cuff, just threw this together really quickly:
function flatten_array()
{
$return = array();
foreach ( func_get_args() as $arg ) {
if ( is_array($arg) ) {
foreach ( $arg as $k => $v ) {
if ( is_array($v) ) {
$return = array_merge($return, flatten_array($v));
}
else {
if ( is_numeric($k) and intval($k) == $k ) {
$return[] = $v;
}
else {
$return[$k] = $v;
}
}
}
}
else {
$return[] = $arg;
}
}
return $return;
}
$flatten = array( 1, 2, 3, 4, array( 5, 6, array( 7, 8, 9, 10, array(
'test' => 11, 'test2' => 12 ), 13 ), 14, 15 ), 16, 17, 18, 19, 20 );
echo "<pre>" . print_r(flatten_array($flatten), true) . "</pre>";
Returns:
Array
(
[0] => 1
[1] => 2
[2] => 3
[3] => 4
[4] => 5
[5] => 6
[6] => 7
[7] => 8
[8] => 9
[9] => 10
[test] => 11
[test2] => 12
[10] => 13
[11] => 14
[12] => 15
[13] => 16
[14] => 17
[15] => 18
[16] => 19
[17] => 20
)
This preserves array keys if it's an associative array being flattened.
If the array is numerically indexed, it just appends the value to the end.
Hope this helps.
--
Jeremy C. Privett
Chief Operating Officer
Zend Certified Engineer
Completely Unique
jprivett@xxxxxxxxxxxxxxxxxxxx
Phone: 303.459.4819
Mobile: 303.883.0312
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