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PHP: How to check if image file exists?
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You need the filename in quotation marks at least (as string):
if (file_exists('http://www.mydomain.com/images/'.$filename)) {
… }
Also, make sure $filename is properly validated. And then, it will only work when allow_url_fopen is ...
Best way to require all files from a directory in ruby?
What's the best way to require all files from a directory in ruby ?
11 Answers
11
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Can PHP PDO Statements accept the table or column name as parameter?
...(e.g. array('u'=>'users', 't'=>'table', 'n'=>'nonsensitive_data') etc.)
– Kzqai
Dec 22 '11 at 18:05
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Why does Oracle 9i treat an empty string as NULL?
...answer exists but is not known by the user, data where there is no answer, etc. all of which constitute some sense of NULL).
By the time that the SQL standard came around and agreed that NULL and the empty string were distinct entities, there were already Oracle users that had code that assumed the...
How to dynamically load a Python class
... yes, you can do locate('my_package.my_module.MyClass.attr.method.etc')
– chadrik
May 23 '18 at 23:19
actuall...
Compare JavaScript Array of Objects to Get Min / Max
...for stuff like this: to perform aggregate operations (like min, max, avg, etc.) on an array of objects, and return a single result:
myArray.reduce(function(prev, curr) {
return prev.Cost < curr.Cost ? prev : curr;
});
...or you can define that inner function with ES6 function syntax:
(pr...
How to highlight a current menu item?
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on view
<a ng-class="getClass('/tasks')" href="/tasks">Tasks</a>
on controller
$scope.getClass = function (path) {
return ($location.path().substr(0, path.length) === path) ? 'active' : '';
}
With this the tasks link will have the ...
How to make git mark a deleted and a new file as a file move?
I've moved a file manually and then I've modified it. According to Git, it is a new file and a removed file. Is there any way to force Git into treating it as a file move?
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What are all the common ways to read a file in Ruby?
What are all the common ways to read a file in Ruby?
10 Answers
10
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Handling Dialogs in WPF with MVVM
...his control in terms of how to show it, and retrieve dialog result from it etc. Especially in MVVM scenario in Silverlight.
– Roboblob
Jan 8 '10 at 15:41
16
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