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Fatal error: Allowed memory size of XXX bytes exhausted (tried to allo...

There is not enough memory to run your script. PHP has reached the memory limit and stops executing it. This error is fatal, the script stops. The value of the memory limit can be configured either in the php.ini file or by using ini_set('memory_limit', '128 M'); in the script (which will overwrite the value defined in php.ini). The purpose of the memory limit is to prevent a single PHP script from gobbling up all the available memory and bringing the whole web server down.

The first thing to do is to minimise the amount of memory your script needs. For instance, if you're reading a large file into a variable or are fetching many records from a database and are storing them all in an array, that may use a lot of memory. Change your code to instead read the file line by line or fetch database records one at a time without storing them all in memory. This does require a bit of a conceptual awareness of what's going on behind the scenes and when data is stored in memory vs. elsewhere.

If this error occurred when your script was not doing memory-intensive work, you need to check your code to see whether there is a memory leak. The memory_get_usage function is your friend.

debugging - Reference - What does this error mean in PHP? - Stack Over...

php debugging warnings
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Fatal error: Allowed memory size of XXX bytes exhausted (tried to allo...

There is not enough memory to run your script. PHP has reached the memory limit and stops executing it. This error is fatal, the script stops. The value of the memory limit can be configured either in the php.ini file or by using ini_set('memory_limit', '128 M'); in the script (which will overwrite the value defined in php.ini). The purpose of the memory limit is to prevent a single PHP script from gobbling up all the available memory and bringing the whole web server down.

The first thing to do is to minimise the amount of memory your script needs. For instance, if you're reading a large file into a variable or are fetching many records from a database and are storing them all in an array, that may use a lot of memory. Change your code to instead read the file line by line or fetch database records one at a time without storing them all in memory. This does require a bit of a conceptual awareness of what's going on behind the scenes and when data is stored in memory vs. elsewhere.

If this error occurred when your script was not doing memory-intensive work, you need to check your code to see whether there is a memory leak. The memory_get_usage function is your friend.

debugging - Reference - What does this error mean in PHP? - Stack Over...

php debugging warnings
Rectangle 27 47

Fatal error: Allowed memory size of XXX bytes exhausted (tried to allo...

There is not enough memory to run your script. PHP has reached the memory limit and stops executing it. This error is fatal, the script stops. The value of the memory limit can be configured either in the php.ini file or by using ini_set('memory_limit', '128 M'); in the script (which will overwrite the value defined in php.ini). The purpose of the memory limit is to prevent a single PHP script from gobbling up all the available memory and bringing the whole web server down.

The first thing to do is to minimise the amount of memory your script needs. For instance, if you're reading a large file into a variable or are fetching many records from a database and are storing them all in an array, that may use a lot of memory. Change your code to instead read the file line by line or fetch database records one at a time without storing them all in memory. This does require a bit of a conceptual awareness of what's going on behind the scenes and when data is stored in memory vs. elsewhere.

If this error occurred when your script was not doing memory-intensive work, you need to check your code to see whether there is a memory leak. The memory_get_usage function is your friend.

debugging - Reference - What does this error mean in PHP? - Stack Over...

php debugging warnings
Rectangle 27 47

Fatal error: Allowed memory size of XXX bytes exhausted (tried to allo...

There is not enough memory to run your script. PHP has reached the memory limit and stops executing it. This error is fatal, the script stops. The value of the memory limit can be configured either in the php.ini file or by using ini_set('memory_limit', '128 M'); in the script (which will overwrite the value defined in php.ini). The purpose of the memory limit is to prevent a single PHP script from gobbling up all the available memory and bringing the whole web server down.

The first thing to do is to minimise the amount of memory your script needs. For instance, if you're reading a large file into a variable or are fetching many records from a database and are storing them all in an array, that may use a lot of memory. Change your code to instead read the file line by line or fetch database records one at a time without storing them all in memory. This does require a bit of a conceptual awareness of what's going on behind the scenes and when data is stored in memory vs. elsewhere.

If this error occurred when your script was not doing memory-intensive work, you need to check your code to see whether there is a memory leak. The memory_get_usage function is your friend.

debugging - Reference - What does this error mean in PHP? - Stack Over...

php debugging warnings
Rectangle 27 47

Fatal error: Allowed memory size of XXX bytes exhausted (tried to allo...

There is not enough memory to run your script. PHP has reached the memory limit and stops executing it. This error is fatal, the script stops. The value of the memory limit can be configured either in the php.ini file or by using ini_set('memory_limit', '128 M'); in the script (which will overwrite the value defined in php.ini). The purpose of the memory limit is to prevent a single PHP script from gobbling up all the available memory and bringing the whole web server down.

The first thing to do is to minimise the amount of memory your script needs. For instance, if you're reading a large file into a variable or are fetching many records from a database and are storing them all in an array, that may use a lot of memory. Change your code to instead read the file line by line or fetch database records one at a time without storing them all in memory. This does require a bit of a conceptual awareness of what's going on behind the scenes and when data is stored in memory vs. elsewhere.

If this error occurred when your script was not doing memory-intensive work, you need to check your code to see whether there is a memory leak. The memory_get_usage function is your friend.

debugging - Reference - What does this error mean in PHP? - Stack Over...

php debugging warnings
Rectangle 27 47

Fatal error: Allowed memory size of XXX bytes exhausted (tried to allo...

There is not enough memory to run your script. PHP has reached the memory limit and stops executing it. This error is fatal, the script stops. The value of the memory limit can be configured either in the php.ini file or by using ini_set('memory_limit', '128 M'); in the script (which will overwrite the value defined in php.ini). The purpose of the memory limit is to prevent a single PHP script from gobbling up all the available memory and bringing the whole web server down.

The first thing to do is to minimise the amount of memory your script needs. For instance, if you're reading a large file into a variable or are fetching many records from a database and are storing them all in an array, that may use a lot of memory. Change your code to instead read the file line by line or fetch database records one at a time without storing them all in memory. This does require a bit of a conceptual awareness of what's going on behind the scenes and when data is stored in memory vs. elsewhere.

If this error occurred when your script was not doing memory-intensive work, you need to check your code to see whether there is a memory leak. The memory_get_usage function is your friend.

debugging - Reference - What does this error mean in PHP? - Stack Over...

php debugging warnings
Rectangle 27 47

Fatal error: Allowed memory size of XXX bytes exhausted (tried to allo...

There is not enough memory to run your script. PHP has reached the memory limit and stops executing it. This error is fatal, the script stops. The value of the memory limit can be configured either in the php.ini file or by using ini_set('memory_limit', '128 M'); in the script (which will overwrite the value defined in php.ini). The purpose of the memory limit is to prevent a single PHP script from gobbling up all the available memory and bringing the whole web server down.

The first thing to do is to minimise the amount of memory your script needs. For instance, if you're reading a large file into a variable or are fetching many records from a database and are storing them all in an array, that may use a lot of memory. Change your code to instead read the file line by line or fetch database records one at a time without storing them all in memory. This does require a bit of a conceptual awareness of what's going on behind the scenes and when data is stored in memory vs. elsewhere.

If this error occurred when your script was not doing memory-intensive work, you need to check your code to see whether there is a memory leak. The memory_get_usage function is your friend.

debugging - Reference - What does this error mean in PHP? - Stack Over...

php debugging warnings
Rectangle 27 47

Fatal error: Allowed memory size of XXX bytes exhausted (tried to allo...

There is not enough memory to run your script. PHP has reached the memory limit and stops executing it. This error is fatal, the script stops. The value of the memory limit can be configured either in the php.ini file or by using ini_set('memory_limit', '128 M'); in the script (which will overwrite the value defined in php.ini). The purpose of the memory limit is to prevent a single PHP script from gobbling up all the available memory and bringing the whole web server down.

The first thing to do is to minimise the amount of memory your script needs. For instance, if you're reading a large file into a variable or are fetching many records from a database and are storing them all in an array, that may use a lot of memory. Change your code to instead read the file line by line or fetch database records one at a time without storing them all in memory. This does require a bit of a conceptual awareness of what's going on behind the scenes and when data is stored in memory vs. elsewhere.

If this error occurred when your script was not doing memory-intensive work, you need to check your code to see whether there is a memory leak. The memory_get_usage function is your friend.

debugging - Reference - What does this error mean in PHP? - Stack Over...

php debugging warnings
Rectangle 27 47

Fatal error: Allowed memory size of XXX bytes exhausted (tried to allo...

There is not enough memory to run your script. PHP has reached the memory limit and stops executing it. This error is fatal, the script stops. The value of the memory limit can be configured either in the php.ini file or by using ini_set('memory_limit', '128 M'); in the script (which will overwrite the value defined in php.ini). The purpose of the memory limit is to prevent a single PHP script from gobbling up all the available memory and bringing the whole web server down.

The first thing to do is to minimise the amount of memory your script needs. For instance, if you're reading a large file into a variable or are fetching many records from a database and are storing them all in an array, that may use a lot of memory. Change your code to instead read the file line by line or fetch database records one at a time without storing them all in memory. This does require a bit of a conceptual awareness of what's going on behind the scenes and when data is stored in memory vs. elsewhere.

If this error occurred when your script was not doing memory-intensive work, you need to check your code to see whether there is a memory leak. The memory_get_usage function is your friend.

debugging - Reference - What does this error mean in PHP? - Stack Over...

php debugging warnings
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Just add this below line to before line of you getting error in your file

ini_set('memory_limit', '-1');

It will take unlimited memory usage of server, it's working fine.

You still should check why the memory is exhausted. Maybe you don't need to read the whole file, maybe read it sequentially.

- @panidarapu and @Don Jones: Depending on the amount of memory, and how this script is used, it could be dangerous to allow the change in memory usage in this way. Don, in your case, you can likely break the feed down into smaller chunks and parse what you need. Glad it works, but be careful.

This suggestion worked for me. Dynamically increasing memory limit in the script is done via function ini_set(): ini_set('memory_limit', '128M');

Guys, please don't go for this quick fix. It can hurt you in long run. As a good programmer, you should figure-out the reason behind this memory consumption & increase as required instead of keeping it UNLIMITED.

Allowed memory size of 33554432 bytes exhausted (tried to allocate 431...

php memory-management memory-limit
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Just add this below line to before line of you getting error in your file

ini_set('memory_limit', '-1');

It will take unlimited memory usage of server, it's working fine.

You still should check why the memory is exhausted. Maybe you don't need to read the whole file, maybe read it sequentially.

- @panidarapu and @Don Jones: Depending on the amount of memory, and how this script is used, it could be dangerous to allow the change in memory usage in this way. Don, in your case, you can likely break the feed down into smaller chunks and parse what you need. Glad it works, but be careful.

This suggestion worked for me. Dynamically increasing memory limit in the script is done via function ini_set(): ini_set('memory_limit', '128M');

Guys, please don't go for this quick fix. It can hurt you in long run. As a good programmer, you should figure-out the reason behind this memory consumption & increase as required instead of keeping it UNLIMITED.

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Allowed memory size of 33554432 bytes exhausted (tried to allocate 431...

php memory-management memory-limit
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Here are two simple methods to increase the limit on shared hosting:

Allowed memory size of 33554432 bytes exhausted (tried to allocate 431...

php memory-management memory-limit
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Here are two simple methods to increase the limit on shared hosting:

Allowed memory size of 33554432 bytes exhausted (tried to allocate 431...

php memory-management memory-limit
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Your script is using too much memory. This can often happen in PHP if you have a loop that has run out of control and you are creating objects or adding to arrays on each pass of the loop.

If that isn't the problem, try and help out PHP by destroying objects that you are finished with by setting them to null. eg. $OldVar = null;

Check the code where the error actually happens as well. Would you expect that line to be allocating a massive amount of memory? If not, try and figure out what has gone wrong...

I had this exact problem - turned out I had inadvertedly created a recursive function - and thus it ran out of memory at any random time during code execution. This had the upside of me now having the world's most memory efficient code, created in the hunt for a memory leak.

Allowed memory size of 33554432 bytes exhausted (tried to allocate 431...

php memory-management memory-limit
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Your script is using too much memory. This can often happen in PHP if you have a loop that has run out of control and you are creating objects or adding to arrays on each pass of the loop.

If that isn't the problem, try and help out PHP by destroying objects that you are finished with by setting them to null. eg. $OldVar = null;

Check the code where the error actually happens as well. Would you expect that line to be allocating a massive amount of memory? If not, try and figure out what has gone wrong...

I had this exact problem - turned out I had inadvertedly created a recursive function - and thus it ran out of memory at any random time during code execution. This had the upside of me now having the world's most memory efficient code, created in the hunt for a memory leak.

Allowed memory size of 33554432 bytes exhausted (tried to allocate 431...

php memory-management memory-limit
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It is unfortunately easy to program in PHP in a way that consumes memory faster than you realise. Copying strings, arrays and objects instead of using references will do it, though PHP 5 is supposed to do this more automatically than in PHP 4. But dealing with your data set in entirety over several steps is also wasteful compared to processing the smallest logical unit at a time. The classic example is working with large resultsets from a database: most programmers fetch the entire resultset into an array and then loop over it one or more times with foreach(). It is much more memory efficient to use a while() loop to fetch and process one row at a time. The same thing applies to processing a file.

It seems pretty likely that this is what does it.

Allowed memory size of 33554432 bytes exhausted (tried to allocate 431...

php memory-management memory-limit
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If you want to read large files, you should read them bit by bit instead of reading them at once. Its simple math: If you read a 1 MB large file at once, than at least 1 MB of memory is needed at the same time to hold the data.

So you should read them bit by bit using fopen & fread.

$fh = fopen($folder.'/'.$filename, "rb") or die(); $buffer = 1024*1024; while (!feof($fh)) { print(fread($fh, $buffer)); flush(); } fclose($fh);

Allowed memory size of 33554432 bytes exhausted (tried to allocate 431...

php memory-management memory-limit
Rectangle 27 13

If you want to read large files, you should read them bit by bit instead of reading them at once. Its simple math: If you read a 1 MB large file at once, than at least 1 MB of memory is needed at the same time to hold the data.

So you should read them bit by bit using fopen & fread.

$fh = fopen($folder.'/'.$filename, "rb") or die(); $buffer = 1024*1024; while (!feof($fh)) { print(fread($fh, $buffer)); flush(); } fclose($fh);

Allowed memory size of 33554432 bytes exhausted (tried to allocate 431...

php memory-management memory-limit
Rectangle 27 13

It is unfortunately easy to program in PHP in a way that consumes memory faster than you realise. Copying strings, arrays and objects instead of using references will do it, though PHP 5 is supposed to do this more automatically than in PHP 4. But dealing with your data set in entirety over several steps is also wasteful compared to processing the smallest logical unit at a time. The classic example is working with large resultsets from a database: most programmers fetch the entire resultset into an array and then loop over it one or more times with foreach(). It is much more memory efficient to use a while() loop to fetch and process one row at a time. The same thing applies to processing a file.

It seems pretty likely that this is what does it.

Allowed memory size of 33554432 bytes exhausted (tried to allocate 431...

php memory-management memory-limit
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You can increase the memory allowed to php script by executing the following line above all the codes in the script:

ini_set('memory_limit','-1'); // enabled the full memory available.

And also de allocate the unwanted variables in the script.

Allowed memory size of 33554432 bytes exhausted (tried to allocate 431...

php memory-management memory-limit