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PDO get the last ID inserted

... That's because that's an SQL function, not PHP. You can use PDO::lastInsertId(). Like: $stmt = $db->prepare("..."); $stmt->execute(); $id = $db->lastInsertId(); If you want to do it with SQL instead of the PDO API, you would do it like a normal select qu...
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How can I create an array with key value pairs?

...dd key-value pairs to the end of the array, even if you have integer keys. PHP arrays are ordered, so if you want to prepend an array with a key-value pair, you have to do this: $data = ['user_email' => joy@cargomar.org'] + $data. – totymedli May 9 '18 at 22...
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Difference between “!==” and “==!” [closed]

Yesterday I stumbled over this when I modified PHP code written by someone else. I was baffled that a simple comparison ( if ($var ==! " ") ) didn't work as expected. After some testing I realized that whoever wrote that code used ==! instead of !== as comparison operator. I've never seen ==! ...
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jQuery: Return data after ajax call success [duplicate]

... the result: function testAjax(handleData) { $.ajax({ url:"getvalue.php", success:function(data) { handleData(data); } }); } Call it like this: testAjax(function(output){ // here you use the output }); // Note: the call won't wait for the result, // so it will continue...
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How to get the current taxonomy term ID (not the slug) in WordPress?

I've created a taxonomy.php page in my WordPress theme folder. I would like to get the current term id for a function. How can I get this? ...
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How to get progress from XMLHttpRequest

...sbar(); req.onprogress = updateProgress; req.open('GET', 'test.php', true); req.onreadystatechange = function (aEvt) { if (req.readyState == 4) { //run any callback here } }; req.send(); } ...
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How do I get the base URL with PHP?

... Try this: <?php echo "http://" . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI']; ?> Learn more about the $_SERVER predefined variable. If you plan on using https, you can use this: function url(){ return sprintf( "%s://%s...
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How can I remove a key and its value from an associative array?

... +1: Thanks for the help. PHP newb here, but it's worth noting that if you are trying to perform these edits inside of a foreach loop, then you need to prepend an ampersand to your enumeration variable to allow write access. – Fr...
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Difference between array_map, array_walk and array_filter

... arbitrary parameter to pass to the callback. This mostly irrelevant since PHP 5.3 (when anonymous functions were introduced). Length of Returned Array: The resulting array of array_map has the same length as that of the largest input array; array_walk does not return an array but at the same tim...
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How to debug PDO database queries?

Before moving to PDO, I created SQL queries in PHP by concatenating strings. If I got database syntax error, I could just echo the final SQL query string, try it myself on the database, and tweak it until I fixed the error, then put that back into the code. ...