The SUBSTR function is a little different in Perl and PHP

The SUBSTR function is a little different in Perl and PHP

Published on April 13, 2009 in Hi.baidu

Use substr Same code in Perl and PHP, with different results.

Php:

<?php $addtime = "2009-04-13";    $datetime = "2008-12-31 12:00:00";    substr ($datetime, 0,10) = $addtime; Echo $datetime;? >

Compile error: Can ' t use function return value in write context

Perl:

#!/usr/bin/perl-wuse strict;my $addtime = "2009-04-13"; my $datetime = "2008-12-31 12:00:00"; substr ($datetime, 0,10) = $ad Dtime;print $datetime;

Result: 2009-04-13 12:00:00

SUBSTR in Perl can intercept replacements, and PHP can be replaced with the Substr_replace function.

PHP's Substr_replace function uses:

<?php $addtime = "2009-04-13";    $datetime = "2008-12-31 12:00:00";    $datetime = Substr_replace ($datetime, $addtime, 0,10); Echo $datetime;? >

The SUBSTR function is a little different in Perl and PHP