Utility Functions for PHP

Functions are added to global namespace

Contents

• dbg
• h
• is_natural
• between
• is_numeric_list
• last_chars
• create_slug
• coalesce
• get_first_key
• get_first_value
• get_last_key
• get_last_value
• array_unset
• array_iunique
• get_directory_size
• get_file_name
• get_file_extension
• check_file_exists
• format_bytes
• datetotime
• is_date
• t2d
• t2dt
• get_range
• _humanize
• get_class_constant
• get_class_constants
• shorten
• safe_json_encode
• get_client_ip
• rm_rf
• copy_r
• get_query_params
• get_class_name
• extract_number
• seconds_to_hour_minute
• is_cli

dbg

/**
 * debug method from Cakephp - convenient wrapper for print_r
 *
 * @param $var
 * @param bool|false $return
 * @return string
 */
function dbg($var, $return = false)

h

/**
 * Convenience method for htmlspecialchars.
 *
 * @param string|array|object $text Text to wrap through htmlspecialchars. Also works with arrays, and objects.
 *    Arrays will be mapped and have all their elements escaped. Objects will be string cast if they
 *    implement a `__toString` method. Otherwise the class name will be used.
 * @param bool $double Encode existing html entities.
 * @param string|null $charset Character set to use when escaping. Defaults to config value in `mb_internal_encoding()`
 * or 'UTF-8'.
 * @return string Wrapped text.
 * @link http://book.cakephp.org/3.0/en/core-libraries/global-constants-and-functions.html#h
 */
function h($text, $double = true, $charset = null)

is_natural

/**
 * checks if the given number is a natural number
 *
 * @param int|float|array $number
 * @param bool $zero - if set to true zero will be considered
 * @return bool
 */
function is_natural($number, $zero = false)

between

/**
 * checks if the given value is between 2 values(inclusive)
 *
 * @param int $number
 * @param int $min
 * @param int $max
 * @return bool
 */
function between($number, $min, $max)

is_numeric_list

/**
 * if an array is provided checks the values of the array all to be numeric,
 * if string is provided, will check to be comma separated list
 *
 * @param mixed $data - array of numbers or string as comma separated numbers
 * @return bool
 */
function is_numeric_list($data)

last_chars

/**
 * returns given amount of characters counting backwards
 *
 * @param string $str
 * @param int $count
 * @return string
 */
function last_chars($str, $count = 1)

create_slug

/**
 * create slug from string
 *
 * @param string $str
 * @param string $symbol
 * @return string - e.g. in word1-word2-word3 format
 */
function create_slug($str = "", $symbol = "-")

coalesce

/**
 * mysql coalesce equivalent
 *
 * @param mixed - list of arguments
 * @return mixed
 * @link http://stackoverflow.com/a/4688108/932473
 */
function coalesce()

get_first_key

/**
 * returns the first key of the array
 *
 * @param array $array
 * @return mixed
 */
function get_first_key(array $array = [])

get_first_value

/**
 * returns the first value of the array
 *
 * @param array $array
 * @return mixed
 */
function get_first_value($array)

get_last_key

/**
 * returns the last key of the array
 *
 * @param array $array
 * @return mixed
 */
function get_last_key($array)

get_last_value

/**
 * returns the last value of the array
 *
 * @param array $array
 * @return mixed
 */
function get_last_value($array)

array_unset

/**
 * unsets array's items by value
 *
 * @param array $array - the original array
 * @param array|string - the value or array of values to be unset
 * @return array - the processed array
 */
function array_unset($array, $values = [])

array_iunique

/**
 * case-insensitive array_unique
 *
 * @param array
 * @return array
 * @link http://stackoverflow.com/a/2276400/932473
 */
function array_iunique($array)

get_directory_size

/**
 * returns the size of the directory
 *
 * @param null $path
 * @param bool|false $unit
 * @param bool|false $intOnly
 * @return string
 * @throws Exception
 * @link http://stackoverflow.com/a/478161/932473
 */
function get_directory_size($path = null, $unit = false, $intOnly = false)

get_file_name

/**
 * returns the file name without the extension
 *
 * @param string $fileName
 * @return string
 */
function get_file_name($fileName = '')

get_file_extension

/**
 * returns the file extension from full file name
 *
 * @param string $fileName
 * @return string
 */
function get_file_extension($fileName)

check_file_exists

/**
 * if file exists will return it - with number concatenated
 *
 * @param $path
 * @param $fileName
 * @param int $n
 * @return bool|string
 */
function check_file_exists($path, $fileName, $n = 100)

format_bytes

/**
 * @param $bytes
 * @param int $precision
 * @return string
 * @link http://stackoverflow.com/a/2510459/932473
 */
function format_bytes($bytes, $precision = 0)

datetotime

/**
 * return timestamp from date considering "/" delimiter
 *
 * @return string
 */
function datetotime($date)

is_date

/**
 * checks if the given date(s) are valid mysql dates
 *
 * @param null $date1
 * @param null $date
 * @return bool - true if all dates are valid, false otherwise
 */
function is_date($date1 = null, $date = null)

t2d

/**
 * returns date in Y-m-d format from seconds
 *
 * @param time $timeStr
 * @return date
 */
function t2d($timeStr = null)

t2dt

/**
 * returns date in Y-m-d H:i:s format from seconds
 *
 * @param time $timeStr
 * @return datetime
 */
function t2dt($timeStr = null)

get_range

/**
 * returns array with options for select box
 *
 * @param $min
 * @param $max
 * @param int $step
 * @return array
 */
function get_range($min, $max, $step = 1)

_humanize

/**
 * @param $val
 * @return string
 */
function _humanize($val)

get_class_constant

/**
 * returns constant of the class based on its value
 *
 * @param $className
 * @param $value
 * @param bool|true $humanize
 * @return string
 * @throws Exception
 */
function get_class_constant($className, $value, $humanize = true)

get_class_constants

/**
 * returns the list of constants of the given class
 *
 * @param $className
 * @param bool|false $reverse
 * @param bool|true $humanize
 * @return array
 * @throws Exception
 */
function get_class_constants($className, $reverse = false, $humanize = true)

shorten

/**
 * returns the short string based on $length if string's length is more than $length
 *
 * @param string $str
 * @param number $length
 * @param bool $raw
 * @return string
 */
function shorten($str = '', $length = null, $raw = false)

safe_json_encode

/**
 * safe json_encode
 *
 * @param string $value
 * @return string
 */
function safe_json_encode($value)

get_client_ip

/**
 * get client ip
 *
 * @return string
 */
function get_client_ip()

rm_rf

/**
 * linux "rm -rf" command equivalent
 * recursively deletes directory
 *
 * @param string $path
 * @throws Exception
 * @return bool
 */
function rm_rf($path)

copy_r

/**
 * recursively copies files and directories
 *
 * @param string $src
 * @param string $dst
 * @return bool
 */
function copy_r($src, $dst)

get_query_params

/**
 * parses the url and returns the specified or all list of params
 *
 * @access public
 * @param string $url
 * @param bool $onlyQuery - if true the param will be checked only in the query string, default - false
 * @return mixed - string if found the param, bool false otherwise
 */
function get_query_params($url, $param = '', $onlyQuery = false)

get_class_name

/**
 * returns class name from object - without namespace
 *
 * @param string $object
 * @return mixed
 */
function get_class_name($object = '')

extract_number

/**
 * returns numbers from the string
 *
 * @param string $str
 * @return string
 */
function extract_number($str = '')

seconds_to_hour_minute

/**
 * converts given seconds to hours and minutes
 *
 * @param null $seconds
 * @return string
 */
function seconds_to_hour_minute($seconds = null)

is_cli

/**
 * check if the current request is from CLI
 *
 * @return bool
 */
function is_cli()