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Two-way encryption: I need to store passwords that can be retrieved

...there is much more to note... How do I encrypt and decrypt a password in PHP? See below for a strong class that takes care of everything for you: What is the safest algorithm to encrypt the passwords with? safest? any of them. The safest method if you're going to encrypt is to protect against ...
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How to post data in PHP using file_get_contents?

I'm using PHP's function file_get_contents() to fetch contents of a URL and then I process headers through the variable $http_response_header . ...
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Difference between and

... get submitted. Sample HTML form (index.html): <form action="checkout.php" method="POST"> <!-- this won't get submitted despite being named --> <input type="button" name="button1" value="a button"> <!-- this one does; so the input's TYPE is important! --> <inpu...
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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 do I implement basic “Long Polling”?

...rror 404 (to show error handling in the coming Javascript example) msgsrv.php <?php if(rand(1,3) == 1){ /* Fake an error */ header("HTTP/1.0 404 Not Found"); die(); } /* Send a string after a random number of seconds (2-10) */ sleep(rand(2,10)); echo("Hi! Have a random number: " . ...
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Add a new column to existing table in a migration

...e a specific name to avoid clashing with existing models for Laravel 3: php artisan migrate:make add_paid_to_users for Laravel 5+: php artisan make:migration add_paid_to_users_table --table=users You then need to use the Schema::table() method (as you're accessing an existing table, not crea...
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JavaScript/jQuery to download file via POST with JSON data

...reate an element and use appendChild instead. $.post('/create_binary_file.php', postData, function(retData) { var iframe = document.createElement("iframe"); iframe.setAttribute("src", retData.url); iframe.setAttribute("style", "display: none"); document.body.appendChild(iframe); }); Or u...
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PHP foreach loop key value

....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f1834703%2fphp-foreach-loop-key-value%23new-answer', 'question_page'); } ); Post as a guest ...
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In PHP, what is a closure and why does it use the “use” identifier?

I'm checking out some PHP 5.3.0 features and ran across some code on the site that looks quite funny: 6 Answers ...
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Include CSS,javascript file in Yii Framework

... Something like this: <?php $baseUrl = Yii::app()->baseUrl; $cs = Yii::app()->getClientScript(); $cs->registerScriptFile($baseUrl.'/js/yourscript.js'); $cs->registerCssFile($baseUrl.'/css/yourcss.css'); ?> ...