PHP 手冊
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# Resource Limits

表格 H-3.Resource Limits

Name | Default | Changeable
--- | --- | ---
memory_limit | "8M" | PHP_INI_ALL

這裡為簡短的結構指令說明。

memory_limit integer

  This sets the maximum amount of memory in bytes that a script is allowed to allocate. This helps prevent poorly written scripts for eating up all available memory on a server. In order to use this directive you must have enabled it at compile time. So, your configure line would have included: --enable-memory-limit. Note that you have to set it to -1 if you don't want any limit for your memory.

  As of PHP 4.3.2, and when memory_limit is enabled, the PHP function memory_get_usage() is made available.

See also: max_execution_time.

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