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How to prevent form from submitting multiple times from client side?

... I agree. Should be form page ---submits to---> form_submission_script.php ---after saving, redirects to---> form_thankyou.html – Simon East Sep 7 '11 at 2:18 add a com...
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Google maps API V3 - multiple markers on exact same spot

...ent.getElementById('map-canvas'), mapOptions); $.getJSON('jsonbackend.php', function(data) { infoWindow = new google.maps.InfoWindow(); $.each(data, function(key, val) { if(val['LATITUDE']!='' && val['LONGITUDE']!='') { ...
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Is there a naming convention for MySQL?

... Thankfully, PHP developers aren't "Camel case bigots" like some development communities I know. Your conventions sound fine. Just so long as they're a) simple, and b) consistent - I don't see any problems :) PS: Personally, I think 5)...
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Python != operation vs “is not”

... @MatrixFrog: In PHP or JavaScript we would say that is is like === (very equal), and conversely is not is like !== (not exactly equal). – Orwellophile Apr 2 '17 at 1:43 ...
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Is Safari on iOS 6 caching $.ajax results?

...e(); var n = currentTime.getTime(); postUrl = "http://www.example.com/test.php?nocache="+n; $.post(postUrl, callbackFunction); I wasted a few hours figuring this out. It would have been nice of Apple to notify developers of this caching issue. ...
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Factory Pattern. When to use factory methods?

...l object you are trying to create relies on several other objects. E.g, in PHP: Suppose you have a House object, which in turn has a Kitchen and a LivingRoom object, and the LivingRoom object has a TV object inside as well. The simplest method to achieve this is having each object create their chi...
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How to call an external command?

...at you want in a CGI script. The problem is not specific to Python; in the PHP community the problems are the same. The solution is to pass DETACHED_PROCESS Process Creation Flag to the underlying CreateProcess function in Windows API. If you happen to have installed pywin32, you can import the fla...
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Is there any way to put malicious code into a regular expression?

...ar Expression Matching Can Be Simple And Fast (but is slow in Java, Perl, PHP, Python, Ruby, ...) talks about ways that most modern NFAs, which all seem to derive from Henry Spencer’s code, suffer severe performance degradation, but where a Thompson‐style NFA has no such problems. If you only ...
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Count the number of occurrences of a string in a VARCHAR field?

...), "value", "") ) and make sure that "value" is always lowercased by using PHP strtolower(). PS: This solution above helped me to build my own little search engine and to weight the results by the number of words within the text. Thanks! – Kai Noack Jul 3 '17 a...
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How do I modify the URL without reloading the page?

...entries, respectively. window.history.pushState('page2', 'Title', '/page2.php'); Read more about this from here share | improve this answer | follow | ...