get_simple_date_ranges (report_helper.php)

Returns an associative array of predefined date range options for reports filtering, including today, yesterday, last 7 days, this/last month, this/last year, and all time.

<?php
function get_simple_date_ranges()
{
		$CI =& get_instance();
		$CI->load->language('reports');
		$today =  date('Y-m-d');
		$yesterday = date('Y-m-d', mktime(0,0,0,date("m"),date("d")-1,date("Y")));
		$six_days_ago = date('Y-m-d', mktime(0,0,0,date("m"),date("d")-6,date("Y")));
		$start_of_this_month = date('Y-m-d', mktime(0,0,0,date("m"),1,date("Y")));
		$end_of_this_month = date('Y-m-d',strtotime('-1 second',strtotime('+1 month',strtotime(date('m').'/01/'.date('Y').' 00:00:00'))));
		$start_of_last_month = date('Y-m-d', mktime(0,0,0,date("m")-1,1,date("Y")));
		$end_of_last_month = date('Y-m-d',strtotime('-1 second',strtotime('+1 month',strtotime((date('m') - 1).'/01/'.date('Y').' 00:00:00'))));
		$start_of_this_year =  date('Y-m-d', mktime(0,0,0,1,1,date("Y")));
		$end_of_this_yea

... (truncated -- full source via MCP)