Re: Locking files with PHP

From: Date: Tue, 15 May 2001 08:04:02 +0000
Subject: Re: Locking files with PHP
References: 1  Groups: php.lang 
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http://php.net/flock "Matthew Toledo" <mtoledo@frognet.net> schreef in berichtnieuws 96s5nl$1h8$1@toye.p.sourceforge.net... > Hello, I am just starting to use PHP. I have been using PERL for quite some > time. I was wondering if there is any specific FILE LOCKING I need to > implement to keep more than one person from altering a text file at the same > time. > > For instance, in PERL, you use the flock command to set up an advisory file > lock. Lets say that if I have a web page with a text based database, and > more than one person wants to write to the file at the same time. In perl, > if you use flock(FILE, 2). This causes person A to wait while person B > writes to the file. flock(FILE, 8) unlocks the file. Then person A is > allowed to write to the file. > > Does the perl equivalent of flock happen automatically in PHP? > > If not, how do you lock a file? > > Is it an advisory lock, or will it cause an error if two people try to > access the same file at the same time for the same purpose (writing). > > Thanks, > > > =========================== > Matthew Toledo > FrogNet Design & Domain Management > design@frognet.net > > > > -- > PHP Language Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-lang-unsubscribe@lists.php.net > For additional commands, e-mail: php-lang-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net >

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