3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $pq = new SplPriorityQueue(); //insert method inserts an element in the queue by shifting it up $pq->insert('A', 3); $pq->insert('B', 6); $pq->insert('C', -1); $pq->insert('D', 2); //count the elements echo "count ->" . $pq->count(); //Sets the mode of extraction (EXTR_DATA, EXTR_PRIORITY, EXTR_BOTH) $pq->setExtractFlags(SplPriorityQueue::EXTR_BOTH); //go at the node from the top of the queue $clone1 = clone $pq; $clone1->top(); //iterate the queue (by priority) and display each element while ($clone1->valid()) { print_r($clone1->current()); $clone1->next(); } $clone2 = clone $pq; $clone2->top(); //iterate the queue (by priority) and display each element while ($clone2->valid()) { print_r($clone2->current()); $clone2->next(); }
based on WaUn8
Output for 5.3.0 - 7.1.0
count ->4BADCBADC
Output for 5.0.0 - 5.2.17
Fatal error: Class 'SplPriorityQueue' not found in /in/Uf2MX on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected ')', expecting '(' in /in/Uf2MX on line 15
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected ')', expecting '(' in /in/Uf2MX on line 15
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'('' in /in/Uf2MX on line 15
Process exited with code 255.