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What's the difference between isset() and array_key_exists()? [duplicate]
...P function array_key_exists() determines if a particular key, or numerical index, exists for an element of an array. However, if you want to determine if a key exists and is associated with a value, the PHP language construct isset() can tell you that (and that the value is not null). array_key_exis...
How do I log errors and warnings into a file?
...
Simply put these codes at top of your PHP/index file:
error_reporting(E_ALL); // Error/Exception engine, always use E_ALL
ini_set('ignore_repeated_errors', TRUE); // always use TRUE
ini_set('display_errors', FALSE); // Error/Exception display, use FALSE only in pr...
What is the best way to stop people hacking the PHP-based highscore table of a Flash game
...g( AES(random-128-bit-key-from-above, high-score, SHA1(high-score)))
The PHP code on the server checks the token to make sure the request came from a valid game instance, then decrypts the encrypted high score, checking to make sure the high-score matches the SHA1 of the high-score (if you skip th...
How to debug PDO database queries?
...g($sql_string, array $params = null) {
if (!empty($params)) {
$indexed = $params == array_values($params);
foreach($params as $k=>$v) {
if (is_object($v)) {
if ($v instanceof \DateTime) $v = $v->format('Y-m-d H:i:s');
else continu...
Get current URL path in PHP [duplicate]
...
The URI which was given in order to access this page; for instance, '/index.html'.
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How can I group data with an Angular filter?
...r
(2) Include angular-filter.js (or angular-filter.min.js) in your index.html, after including Angular itself.
(3) Add 'angular.filter' to your main module's list of dependencies.
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Javascript - sort array based on another array
...he sorting array:
result = items.map(function(item) {
var n = sorting.indexOf(item[1]);
sorting[n] = '';
return [n, item]
}).sort().map(function(j) { return j[1] })
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How do I handle too long index names in a Ruby on Rails ActiveRecord migration?
I am trying to add an unique index that gets created from the foreign keys of four associated tables:
9 Answers
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Difference between array_map, array_walk and array_filter
...values-directly, unless passed value by reference (array walk might remove indexes/elements as array_filter indirectly via anonymous function use clause passing the original array but it's a workaround). To conclude thus, changing values, nor if a value is returned or passed by reference is of less ...
How can I add additional PHP versions to MAMP
... of the PHP interpreter can be found at http://www.mamp.info/en/ downloads/index.html . Drop this downloaded folder into your /Applications/MAMP/bin/php! directory. Close and re-open your MAMP PRO application. Your new PHP version should now appear in the PHP drop down menu. MAMP PRO will only suppo...