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How to convert CFStringRef to NSString?
...eMartin Cote
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How to set input type date's default value to today?
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The following code works well:
<input type="date" value="<?php echo date('Y-m-d'); ?>" />
Note that this relies on PHP.
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How to avoid isset() and empty()
... information in a somewhat better structured form: The Definitive Guide To PHP's isset And empty
IMHO you should think about not just making the app "E_NOTICE compatible", but restructuring the whole thing. Having hundreds of points in your code that regularly try to use non-existent variables so...
How does Google's Page Speed lossless image compression work?
When you run Google's PageSpeed plugin for Firebug/Firefox on a website it will suggest cases where an image can be losslessly compressed, and provide a link to download this smaller image.
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appending array to FormData and send via AJAX
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You have several options:
Convert it to a JSON string, then parse it in PHP (recommended)
JS
var json_arr = JSON.stringify(arr);
PHP
$arr = json_decode($_POST['arr']);
Or use @Curios's method
Sending an array via FormData.
Not recommended: Serialize the data with, then deserialize in PHP
JS
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Can linux cat command be used for writing text to file?
...text file:
cat > output.txt <<EOF
some text
some lines
EOF
For PHP file:
cat > test.php <<PHP
<?php
echo "Test";
echo \$var;
?>
PHP
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How can I determine if a JavaScript variable is defined in a page? [duplicate]
... Dagg NabbitDagg Nabbit
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how to bypass Access-Control-Allow-Origin?
...ase).
My ajax script is working , it can send the data over to my server's php script to allow it to process.
However it cannot get the processed data back as it is blocked by "Access-Control-Allow-Origin"
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How do I check if a directory exists? “is_dir”, “file_exists” or both?
...hink realpath() may be the best way to validate if a path exist
http://www.php.net/realpath
Here is an example function:
<?php
/**
* Checks if a folder exist and return canonicalized absolute pathname (long version)
* @param string $folder the path being checked.
* @return mixed returns the ...
How to escape single quotes in MySQL
...re using to talk to MySQL will have an escaping function built in, e.g. in PHP you could use mysqli_real_escape_string or PDO::quote
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