serie; } /** * Return a string with a textual representation of the histogram. * * @return string representing the histogram. */ public function getAsText() { $list = []; foreach ($this->serie as $value) { if (isset($list[$value])) { $list[$value]++; } else { $list += [$value => 1]; } } ksort($list); $result = '

'; for ($j = $this->min; $j <= $this->max; $j++) { if (isset($list[$j])) { $result .= '
• ' . $j . '. '; for ($i = 0; $i < $list[$j]; $i++) { $result .= '*'; } $result .= '
'; } else { $result .= '
• ' . $j . '.
'; } } $result .= '

'; return $result; } /** * Inject the object to use as base for the histogram data. * * @param HistogramInterface $object The object holding the serie. * * @return void. */ public function injectData(HistogramInterface $object) { $this->serie = $object->getHistogramSerie(); $this->min = $object->getHistogramMin(); $this->max = $object->getHistogramMax(); } }