CODEWITHSUNDEEP
phpdatepreg-replace
Wonko the Sane
Wonko the Sane

Reputation: 832

Removing date from string in PHP

I am trying to remove all dates from strings in PHP using preg_replace(). The dates are of the following formats: YYYY-MM-DD, YYYY/MM/DD or YYYY.MM.DD

$string1 = "Current from 2014-10-10 to 2015-05-23";    
$output = preg_replace('/\d{4}[\/\-\.](0?[1-9]|1[012])[\/\-\.](0?[1-9]|[12][0-9]|3[01])/g', '', $string1);

Expected output is "Current from to ". Currently I am getting back "".

Any help greatly appreciated! Wonko

Upvotes: 2

Views: 3159

Answers (1)

Karl
Karl

Reputation: 833

This should work.

$input = "Current from 2014-10-10 to 2015/05/23 and 2001.02.10";
$output = preg_replace('/(\d{4}[\.\/\-][01]\d[\.\/\-][0-3]\d)/', '', $input);
echo $output;

Update To ensure that the date also is valid

<?php
$input = "Current from 2014-10-10 to 2015/05/23 and 2001.19.10";
$output = preg_replace_callback('/(\d{4}[\.\/\-][01]\d[\.\/\-][0-3]\d)/', function($matches) {
    $date = str_replace(array('.','/'), '-', $matches[1]);
    $newDate = DateTime::createFromFormat('Y-m-d', $date);
    if($newDate->format('Y-m-d') == $date) {
        return false;
    }else {
        return $matches[1];
    }
}, $input);
echo $output;

Upvotes: 3

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