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Check if character is number?

...); } The comment for this function reads: // parseFloat NaNs numeric-cast false positives (null|true|false|"") // ...but misinterprets leading-number strings, particularly hex literals ("0x...") // subtraction forces infinities to NaN I think we can trust that these chaps have spent quit...
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Pass entire form as data in jQuery Ajax function

..."); var fd = new FormData(myform ); $.ajax({ url: "example.php", data: fd, cache: false, processData: false, contentType: false, type: 'POST', success: function (dataofconfirm) { // do something with the result } ...
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Check if Key Exists in NameValueCollection

...but it could be current culture or invariant culture || @this.Keys.Cast<string>().Contains(key, StringComparer.OrdinalIgnoreCase); } share | improve this answer | ...
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Cookies on localhost with explicit domain

...ting it to "" or NULL or FALSE instead of "localhost" is not enough. For PHP, see comments on http://php.net/manual/en/function.setcookie.php#73107. If working with the Java Servlet API, don't call the cookie.setDomain("...") method at all. ...
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Why doesn't this code simply print letters A to Z?

... From the docs: PHP follows Perl's convention when dealing with arithmetic operations on character variables and not C's. For example, in Perl 'Z'+1 turns into 'AA', while in C 'Z'+1 turns into '[' ( ord('Z') == 90, ord('[') == 91 ). Note th...
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PHP: How to remove specific element from an array?

...lse) { unset($array[$key]); } array_search returns false (null until PHP 4.2.0) if no item has been found. And if there can be multiple items with the same value, you can use array_keys to get the keys to all items: foreach (array_keys($array, 'strawberry') as $key) { unset($array[$key])...
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How to use relative/absolute paths in css URLs?

...g the search/replace and I created a dynamic css, (e.g. www.mysite.com/css.php) it's the same but now i could use my php constants in the css. somethig like .icon{ background-image:url('<?php echo BASE_IMAGE;?>icon.png'); } and it's not a bad idea to make it dynamic because now i could co...
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php check if array contains all array values from another array

... present in all the arguments. Note that keys are preserved. http://www.php.net/manual/en/function.array-intersect.php share | improve this answer | follow ...
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What does $1 [QSA,L] mean in my .htaccess file?

...)$ (matches any URL except the server root), it will be rewritten as index.php?url=$1 which means a request for ollewill be rewritten as index.php?url=olle). QSA means that if there's a query string passed with the original URL, it will be appended to the rewrite (olle?p=1 will be rewritten as inde...
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Why would json_encode return an empty string

I have a simple php structure with 3 nested arrays. 13 Answers 13 ...