I have extracted a small portion of a calendar application I developed
recently to show some strange behavior with the date() function. When I
run this I get duplicate dates occasionally down the list. I'm seeing
11/4 twice for example. Sometimes dates are missing from the list. The
results change from day to day.
#!/usr/bin/env php
<?php
error_reporting( E_ALL );
define( 'SECONDS_IN_A_DAY', 60 * 60 * 24 );
define( 'LAST_SUNDAY', strtotime( 'last Sunday' ) );
echo 'SECONDS_IN_A_DAY = ' . SECONDS_IN_A_DAY . "\n";
echo 'LAST_SUNDAY = ' . LAST_SUNDAY . "\n";
for( $x = 0; $x < 365; $x++ )
{
$seconds = LAST_SUNDAY + ( SECONDS_IN_A_DAY * $x );
$date = date( 'n/j', $seconds );
echo "$seconds $date\n";
}
I get the same results with latest PHP4 and PHP5.
--
Greg Donald
Cyberfusion Consulting
http://cyberfusionconsulting.com/
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