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@smddzcy

smddzcy/regexp_last30days_oneliner.php

Last active October 1, 2015 09:27
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One line regExp date builder for last 30 days in PHP. Doesn't match dates with ':' delimiter; since they are obviously "hours", not "dates" ._.
Raw
regexp_last30days_oneliner.php
$regexpLastThirty = '#' . '(' .
/*
* regExp builder for this month
* d-m-Y m-d-Y Y-d-m Y-m-d
* d-m-y m-d-y y-d-m y-m-d
*/
implode('|', array_map(function ($v) {
return
'(' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad(date('m'), 2, 0, STR_PAD_LEFT) . '[^:]?' . date('Y') . ')'
. '|' . '(' . str_pad(date('m'), 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . date('Y') . ')'
. '|' . '(' . date('Y') . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad(date('m'), 2, 0, STR_PAD_LEFT) . ')'
. '|' . '(' . date('Y') . '[^:]?' . str_pad(date('m'), 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . ')'
. '|' . '(' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad(date('m'), 2, 0, STR_PAD_LEFT) . '[^:]?' . substr(date('Y'), -2) . ')'
. '|' . '(' . str_pad(date('m'), 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . substr(date('Y'), -2) . ')'
. '|' . '(' . substr(date('Y'), -2) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad(date('m'), 2, 0, STR_PAD_LEFT) . ')'
. '|' . '(' . substr(date('Y'), -2) . '[^:]?' . str_pad(date('m'), 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . ')';
}, range(01, date('d')))) . '|' .
/*
* regExp builder for previous month
* d-m-Y m-d-Y Y-d-m Y-m-d
* d-m-y m-d-y y-d-m y-m-d
*/
implode('|', array_map(function ($v) {
if (date('m') != '01') {
return
'(' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad((date('m') - 1), 2, 0, STR_PAD_LEFT) . '[^:]?' . date('Y') . ')'
. '|' . '(' . str_pad((date('m') - 1), 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . date('Y') . ')'
. '|' . '(' . date('Y') . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad((date('m') - 1), 2, 0, STR_PAD_LEFT) . ')'
. '|' . '(' . date('Y') . '[^:]?' . str_pad((date('m') - 1), 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . ')'
. '|' . '(' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad((date('m') - 1), 2, 0, STR_PAD_LEFT) . '[^:]?' . substr(date('Y'), -2) . ')'
. '|' . '(' . str_pad((date('m') - 1), 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . substr(date('Y'), -2) . ')'
. '|' . '(' . substr(date('Y'), -2) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad((date('m') - 1), 2, 0, STR_PAD_LEFT) . ')'
. '|' . '(' . substr(date('Y'), -2) . '[^:]?' . str_pad((date('m') - 1), 2, 0, STR_PAD_LEFT) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . ')';
} else {
return
'(' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . '12' . '[^:]?' . (date('Y') - 1) . ')'
. '|' . '(' . '12' . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . (date('Y') - 1) . ')'
. '|' . '(' . (date('Y') - 1) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . '12' . ')'
. '|' . '(' . (date('Y') - 1) . '[^:]?' . '12' . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . ')'
. '|' . '(' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . '12' . '[^:]?' . substr((date('Y') - 1), -2) . ')'
. '|' . '(' . '12' . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . substr((date('Y') - 1), -2) . ')'
. '|' . '(' . substr((date('Y') - 1), -2) . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . '[^:]?' . '12' . ')'
. '|' . '(' . substr((date('Y') - 1), -2) . '[^:]?' . '12' . '[^:]?' . str_pad($v, 2, 0, STR_PAD_LEFT) . ')';
}
}, range(date('d'), 31)))
. ')' . '#si';
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