note 102281 added to function.array
| From: | r0h4rd at gmail dot com | Date: | Sun, 06 Feb 2011 10:59:56 +0000 |
| Subject: | note 102281 added to function.array | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-176711@lists.php.net to get a copy of this message | ||
"Quick and dirty" class to get an offset of multidimensional array by given path (sorry,
that without comments).
<?php
class ArrayAsPathException extends Exception {}
class ArrayAsPath {
protected
$data = array(),
$separator = '.';
public function __construct (array $data = array()) {
$this->data = $data;
}
public function set ($value, $path = null) {
if (!isset($path)) {
$this->data = $value;
}
$separator = $this->separator;
$pathtoken = strtok($path, $separator);
$code = '';
$pices = '[\''.$pathtoken.'\']';
while ($pathtoken !== false) {
if (($pathtoken = strtok($separator)) !== false) {
$code .= 'if (!isset($this->data'.$pices.'))
$this->data'.$pices.' = array(); ';
$pices .= '[\''.$pathtoken.'\']';
} else {
$code .= 'return $this->data'.$pices.' = $value;';
}
}
return eval($code);
}
public function get ($path = '', $default = null) {
$result = $this->data;
$separator = $this->separator;
$pathtoken = strtok($path, $separator);
while ($pathtoken !== false) {
if (!isset($result[$pathtoken]) || is_string($result)) {
if (isset($default)) {
return $default;
}
throw new ArrayAsPathException ('Can\'t find
"'.$pathtoken.'" in "'.$path.'"');
}
$result = $result[$pathtoken];
$pathtoken = strtok($separator);
}
return $result ? $result : $default;
}
public function has ($path) {
$result = $this->data;
$separator = $this->separator;
$pathtoken = strtok($path, $separator);
while ($pathtoken !== false) {
if (!isset($result[$pathtoken]) || is_string($result)) {
return false;
}
$result = $result[$pathtoken];
$pathtoken = strtok($separator);
}
return true;
}
public function setSepatator ($separator) {
$this->separator = $separator;
}
public function getSeparator ($separator) {
return $this->separator;
}
}
?>
Code:
<?php
$params = new ArrayAsPath;
$params->set(array(
'foo' => array(
'bar' => array(
'item' => 'Value'
)
)
));
try {
$params->set('test', 'foo.bar.far.new');
printf(
'Array:<pre>%s</pre>
foo.bar.item:<pre>%s</pre>
foo.bar.far:<pre>%s</pre>
foo.bar.far.new<pre>%s</pre>',
var_export($params->get(), true),
var_export($params->get('foo.bar.item'), true),
var_export($params->get('foo.bar.far'), true),
var_export($params->get('foo.bar.far.new'), true)
);
} catch (ArrayAsPathException $e) {
echo 'Oops! It seems that something is wrong. '.$e->getMessage();
}
?>
Will display:
Array:
array (
'foo' =>
array (
'bar' =>
array (
'item' => 'Value',
'far' =>
array (
'new' => 'test',
),
),
),
)
foo.bar.item:
'Value'
foo.bar.far:
array (
'new' => 'test',
)
foo.bar.far.new:
'test'
----
Server IP: 69.147.83.197
Probable Submitter: 94.245.160.183
----
Manual Page -- http://www.php.net/manual/en/function.array.php
Edit -- https://master.php.net/note/edit/102281
Del: integrated -- https://master.php.net/note/delete/102281/integrated
Del: useless -- https://master.php.net/note/delete/102281/useless
Del: bad code -- https://master.php.net/note/delete/102281/bad+code
Del: spam -- https://master.php.net/note/delete/102281/spam
Del: non-english -- https://master.php.net/note/delete/102281/non-english
Del: in docs -- https://master.php.net/note/delete/102281/in+docs
Del: other reasons-- https://master.php.net/note/delete/102281
Reject -- https://master.php.net/note/reject/102281
Search -- https://master.php.net/manage/user-notes.php