Output Buffering for Web Developers, a Beginner’s Guide: Without output buffering (the default), your HTML is sent to the browser in pieces as PHP processes through your script. With output buffering, your HTML is stored in a variable and sent to the browser as one piece at the end of your script. Advantages of output … Read more
Expanding on someone else’s answer: <script> var myvar = <?= json_encode($myVarValue, JSON_UNESCAPED_UNICODE); ?>; </script> Using json_encode() requires: PHP 5.2.0 or greater $myVarValue encoded as UTF-8 (or US-ASCII, of course) Since UTF-8 supports full Unicode, it should be safe to convert on the fly. Please note that if you use this in html attributes like onclick, … Read more
Yes, use a closure: functionName($someArgument, function() use(&$variable) { $variable = “something”; }); Note that in order for you to be able to modify $variable and retrieve the modified value outside of the scope of the anonymous function, it must be referenced in the closure using &.
Just use: $output = array_merge($array1, $array2); That should solve it. Because you use string keys if one key occurs more than one time (like ’44’ in your example) one key will overwrite preceding ones with the same name. Because in your case they both have the same value anyway it doesn’t matter and it will … Read more
You need to set the error mode attribute PDO::ATTR_ERRMODE to PDO::ERRMODE_EXCEPTION. And since you expect the exception to be thrown by the prepare() method, you should disable the PDO::ATTR_EMULATE_PREPARES feature. Otherwise the MySQL server doesn’t “see” the statement until it’s executed. <?php $pdo = new PDO(‘mysql:host=localhost;dbname=test;charset=utf8’, ‘localonly’, ‘localonly’); $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false); $pdo->prepare(‘INSERT INTO DoesNotExist … Read more
The concept is storing persistent data across page loads for a web visitor. Cookies store it directly on the client. Sessions use a cookie as a key of sorts, to associate with the data that is stored on the server side. It is preferred to use sessions because the actual values are hidden from the … Read more
If you are taking a ‘fill in the blank’ approach, you can precisely position text anywhere you want on the page. So it’s relatively easy (if not a bit tedious) to add the missing text to the document. For example with Zend Framework: <?php require_once ‘Zend/Pdf.php’; $pdf = Zend_Pdf::load(‘blank.pdf’); $page = $pdf->pages[0]; $font = Zend_Pdf_Font::fontWithName(Zend_Pdf_Font::FONT_HELVETICA); … Read more
Just to provide an answer – because this error is pretty common – here are a few causes: The :parameter name does not match the bind by mistake (typo?). This is what happened here. They have :alias in the SQL statement, but bound :username. So when the param binding was attempted, Yii/PDO could not find … Read more
When your first argument is null, they’re basically the same except that the null coalescing won’t output an E_NOTICE when you have an undefined variable. The PHP 7.0 migration docs has this to say: The null coalescing operator (??) has been added as syntactic sugar for the common case of needing to use a ternary … Read more
Just use array_merge or array_replace. array_merge works by starting with the array you give it (in the proper order) and overwriting/adding the keys with data from your actual array: $customer[‘address’] = ‘123 fake st’; $customer[‘name’] = ‘Tim’; $customer[‘dob’] = ’12/08/1986′; $customer[‘dontSortMe’] = ‘this value doesnt need to be sorted’; $properOrderedArray = array_merge(array_flip(array(‘name’, ‘dob’, ‘address’)), $customer); … Read more