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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 activated in your PHP config
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How do I determine the current operating system with Node.js
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While the string compare of process.platform === 'win32' seems more concise than the regex, and obviously quicker. The regex Mauvis has posted seems to be a better quality check. If Node/Windows every decided to return win64, winARM, e...
Get full path of the files in PowerShell
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Note that Select-Object returns PSCustomObject, not a string. It might not work if you use result as parameter for another program
– Chintsu
Aug 25 '15 at 20:08
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How does one output bold text in Bash?
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In order to apply a style on your string, you can use a command like:
echo -e '\033[1mYOUR_STRING\033[0m'
Explanation:
echo -e - The -e option means that escaped (backslashed) strings will be interpreted
\033 - escaped sequence represents beginning/endi...
Random color generator
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You can remove .split('') call. String already have Array indexer.
– ujeenator
Jul 27 '15 at 6:08
4
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Cost of len() function
What is the cost of len() function for Python built-ins? (list/tuple/string/dictionary)
5 Answers
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Get Root Directory Path of a PHP project
... is what you are looking for, isn't it?
In that case you could explode the string by slashes and return the first one:
$pathInPieces = explode('/', $_SERVER['DOCUMENT_ROOT']);
echo $pathInPieces[0];
This will output the server's root directory.
Update: When you use the constant DIRECTORY_SEPARAT...
What are all the common ways to read a file in Ruby?
... a starting point perl.com/article/21/2013/4/21/Read-an-entire-file-into-a-string
– the Tin Man
Aug 28 at 0:28
add a comment
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Get Mouse Position
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import javax.swing.*;
public class MyClass {
public static void main(String[] args) throws InterruptedException{
while(true){
//Thread.sleep(100);
System.out.println("(" + MouseInfo.getPointerInfo().getLocation().x +
", " +
MouseInfo.getPointerInfo...
Environment variable substitution in sed
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What if the string contains a \ followed by an n - how to stop sed from converting that into a single newline character?
– Max Waterman
Jul 24 at 9:58
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