Fatal error:allowed memory size of 134217728 bytes exhausted (tried to allocate 2611816 bytes), allocate2611816_php tutorial

Fatal error:allowed memory size of 134217728 bytes exhausted (tried to allocate 2611816 bytes), allocate2611816

Today to use PHP code to process a 580M log file, a total of more than 2.19 million lines of records, because it is a. log file, under Windows It is difficult to separate files according to the number of bars, so under Linux with split-l 10000 filename prefix name The entire file is divided into 200 small files by 10000 lines, then using PHP to cycle through the 200 files, but the implementation of the following error occurred on the topic:

Copy the Code code as follows:
Fatal error:allowed memory size of 134217728 bytes exhausted (tried to allocate 2611816 bytes)

To Baidu, the original is php.ini in the memory allocation problem, the default PHP code can apply to the maximum number of bytes of memory is 134217728 bytes, if the code executes when more memory needs, will be error, so the php.ini file configuration changed a bit:

Copy the Code code as follows:
Memory_limit = 128m;//changed 128M to 256M

But then, a PHP script to request the memory space will be more than 128M, that no matter how much you will be memory_limit later, there must be a problem in the future.

The reason is that when I encode, I only assign values to variables, but never unset ($var). Cause the memory to occupy more and more, so after a variable is no longer used, be sure to remember to unset it off.

The following is the code that I handled this log file today:

Copy CodeThe code is as follows:
<?php
Set_time_limit (1800);
/**
* Get the email address in the log that failed to send
* @param $directory Log log directory
* File name saved @param $name failed mailbox
*/
function Getmail ($directory, $name) {
Traverse the. log file in the directory
$files =scandir ("$directory");
foreach ($files as $v) {
if (Preg_match_all ("|mail\.log\d+|", $v, $log)) {
$logs []= $log [0][0];
}
}
Extract the failed mailboxes sent from all. log files
foreach ($logs as $v) {
$row =file ("$v");
echo "read". $v. " File
";
foreach ($row as $key = $value)
{
if (eregi ("Host name lookup failure| Connection timed out with| Connection refused By|cannot find your reverse hostname ", $value)) {
if (Preg_match ("|\w+" ([-+.] \w+) *@\w+ ([-.] \w+) *.\w+ ([-.] \w+) *| ", $row [$key], $matches)) {
$mail [] = Trim ($matches [0]);
echo "Get email address failed to send". $matches [0]. "
";
}else{
echo "Could not get the mailbox that failed to send in the log, please check";
}
}
}
Unset ($row);
}
Writes the extracted send failed mailbox to the Mail.txt file
$mailurl =fopen ("$name", "a");
foreach ($mail as $line)
{
Fwrite ($mailurl, $line. " \ r \ n ");
}
echo "writes all mailbox addresses that failed to send". $name. "
";
Fclose ($mailurl);
}

Getmail (".", "Mail.txt");
?>

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