true, 'with_float' => true, 'with_size_suffix' => false, 'with_time_suffix' => false, 'with_year' => false, 'is_binary_size' => true ]; /** * Parsed number without time or byte suffix. * * @var string */ private $number; /** * Parsed time or byte suffix, or null, if wasn't found. * * @var string|null */ private $suffix; /** * Acceptable time and byte suffixes. * * @var string */ private $suffixes = ''; /** * Suffix multiplier table for value calculation. * * @var array */ private $suffix_multipliers = []; public function __construct(array $options = []) { $this->options = array_replace($this->options, array_intersect_key($options, $this->options)); if ($this->options['with_size_suffix'] && $this->options['with_year']) { throw new Exception('Ambiguous options.'); } if ($this->options['with_size_suffix']) { $this->suffixes .= ZBX_SIZE_SUFFIXES; $this->suffix_multipliers += $this->options['is_binary_size'] ? ZBX_SIZE_SUFFIX_MULTIPLIERS_BINARY : ZBX_SIZE_SUFFIX_MULTIPLIERS; } if ($this->options['with_time_suffix']) { $this->suffixes .= $this->options['with_year'] ? ZBX_TIME_SUFFIXES_WITH_YEAR : ZBX_TIME_SUFFIXES; $this->suffix_multipliers += ZBX_TIME_SUFFIX_MULTIPLIERS; } } /** * Parse number with optional time or byte suffix. * * !!! Don't forget sync code with C !!! * * @param string $source string to parse * @param int $pos position to start from * * @return int */ public function parse($source, $pos = 0): int { $this->length = 0; $this->match = ''; $this->number = null; $this->suffix = null; $fragment = substr($source, $pos); $pattern = $this->options['with_float'] ? ZBX_PREG_NUMBER : ZBX_PREG_INT; $pattern = ($this->options['with_size_suffix'] || $this->options['with_time_suffix']) ? '/^'.$pattern.'(?['.$this->suffixes.'])?/' : '/^'.$pattern.'/'; if (!preg_match($pattern, $fragment, $matches)) { return self::PARSE_FAIL; } $number = $this->options['with_float'] ? $matches['number'] : $matches['int']; if ($number[0] === '-' && !$this->options['with_minus']) { return self::PARSE_FAIL; } $this->length = strlen($matches[0]); $this->match = $matches[0]; $this->number = $number; $this->suffix = array_key_exists('suffix', $matches) ? $matches['suffix'] : null; return ($pos + $this->length < strlen($source)) ? self::PARSE_SUCCESS_CONT : self::PARSE_SUCCESS; } /** * Calculate value of parsed number in a decimal notation. * * @return float */ public function calcValue(): float { $number = (float) $this->number; if ($this->suffix !== null) { $number *= $this->suffix_multipliers[$this->suffix]; } return $number; } /** * Get suffix of parsed number. * * @return string|null */ public function getSuffix(): ?string { return $this->suffix; } }