<?php if (!defined('ABSPATH')) exit; abstract class CronExpression_AbstractField implements CronExpression_FieldInterface { public function isSatisfied($dateValue, $value) { if ($this->isIncrementsOfRanges($value)) { return $this->isInIncrementsOfRanges($dateValue, $value); } elseif ($this->isRange($value)) { return $this->isInRange($dateValue, $value); } return $value == '*' || $dateValue == $value; } public function isRange($value) { return strpos($value, '-') !== false; } public function isIncrementsOfRanges($value) { return strpos($value, '/') !== false; } public function isInRange($dateValue, $value) { $parts = array_map('trim', explode('-', $value, 2)); return $dateValue >= $parts[0] && $dateValue <= $parts[1]; } public function isInIncrementsOfRanges($dateValue, $value) { $parts = array_map('trim', explode('/', $value, 2)); $stepSize = isset($parts[1]) ? $parts[1] : 0; if ($parts[0] == '*' || $parts[0] === '0') { return (int) $dateValue % $stepSize == 0; } $range = explode('-', $parts[0], 2); $offset = $range[0]; $to = isset($range[1]) ? $range[1] : $dateValue; // Ensure that the date value is within the range if ($dateValue < $offset || $dateValue > $to) { return false; } for ($i = $offset; $i <= $to; $i+= $stepSize) { if ($i == $dateValue) { return true; } } return false; } }