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<?php namespace Rixxi\Utils; class Batch implements \ArrayAccess { /** @var int */ private $limit; /** @var int */ private $counter = 0; /** @var callable */ private $onFlush; /** @var array */ private $values = array(); /** * Callback will receive all appended values as an array. When limit is reached flush is triggered. * * @param callable * @param int */ public function __construct(callable $onFlush, $limit = 1000) { $this->onFlush = $onFlush; $this->limit = $limit; } public function __destruct() { $this->flush(); } /** * Adds value to batch. If limit is reached flush is triggered immediately. * * @param mixed */ public function append($value) { $this->values[] = $value; if (++$this->counter === $this->limit) { $this->flush(); } } /** * If at least one value was appended, calls callback and resets state. */ public function flush() { if ($this->counter !== 0) { $onFlush = $this->onFlush; // performance optimization $onFlush($this->values); $this->values = array(); $this->counter = 0; } } public function offsetExists($index) { throw new NotSupportedException('Checking existence of index is not supported use callback instead.'); } public function offsetGet($index) { throw new NotSupportedException('Retrieving values via index is not supported use callback instead.'); } public function offsetSet($index, $value) { if ($index !== NULL) { throw new InvalidArgumentException('Setting values via index is not supported use append instead.'); } $this->append($value); } public function offsetUnset($index) { throw new NotSupportedException('Batch is append only.'); } }
Output for 5.3.0 - 7.1.0
Output for 5.2.3 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/cV6EX on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING in <b>/in/cV6EX</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
<br /> <b>Parse error</b>: parse error, unexpected T_STRING in <b>/in/cV6EX</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/cV6EX</b> on line <b>3</b><br />
Process exited with code 255.