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Using unset vs. setting a variable to empty
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As has been said, using unset is different with arrays as well
$ foo=(4 5 6)
$ foo[2]=
$ echo ${#foo[*]}
3
$ unset foo[2]
$ echo ${#foo[*]}
2
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How do I count unique values inside a list
...e this program that will ask the user for input and store the values in an array / list.
Then when a blank line is entered it will tell the user how many of those values are unique.
I'm building this for real life reasons and not as a problem set.
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How to debug PDO database queries?
...ated from a comment by "Mark" at php.net:
function sql_debug($sql_string, array $params = null) {
if (!empty($params)) {
$indexed = $params == array_values($params);
foreach($params as $k=>$v) {
if (is_object($v)) {
if ($v instanceof \DateTime) $v ...
Why would json_encode return an empty string
I have a simple php structure with 3 nested arrays.
13 Answers
13
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Why is Java Vector (and Stack) class considered obsolete or deprecated?
...ections.synchronizedList - the fact that Vector combines both the "resized array" collection implementation with the "synchronize every operation" bit is another example of poor design; the decoration approach gives cleaner separation of concerns.
As for a Stack equivalent - I'd look at Deque/Array...
Can I pass parameters by reference in Java?
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Also, an array of length 1 can be used to create a reference if you really want to confuse people :)
– Christoffer
Jul 1 '09 at 12:18
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.rar, .zip files MIME Type
...eMime = $fileInfo->file($_FILES['upfile']['tmp_name']);
$validMimes = array(
'zip' => 'application/zip',
'rar' => 'application/x-rar',
);
$fileExt = array_search($fileMime, $validMimes, true);
if($fileExt != 'zip' && $fileExt != 'rar')
throw new RuntimeExceptio...
How to draw vertical lines on a given plot in matplotlib?
... Draw horizontal lines across plot
:param ys: A scalar, list, or 1D array of vertical offsets
:param ax: The axis (or none to use gca)
:param lims: Optionally the (xmin, xmax) of the lines
:param plot_kwargs: Keyword arguments to be passed to plot
:return: The plot object corr...
Passing a single item as IEnumerable
...lper method is the cleanest way to do it, IMO. If you pass in a list or an array, then an unscrupulous piece of code could cast it and change the contents, leading to odd behaviour in some situations. You could use a read-only collection, but that's likely to involve even more wrapping. I think your...
How to access route, post, get etc. parameters in Zend Framework 2
...one type, just don't pass in anything and the Params plugin will return an array of values with their names as keys.
Example:
$allGetValues = $this->params()->fromQuery(); // empty method call
When visiting http://example.com/?orderby=birthdate&filter=hasphone $allGetValues will be an arr...