$char_count=2;$M=1024*1024;echosprintf("Current memory_limit value is: %s.",ini_get('memory_limit'));echosprintf('Amount of memory allocated to PHP: %0.3fM.',memory_get_usage()/$M);$s=str_repeat("a",$M*$char_count);//sleep(30);echosprintf('Amount of memory allocated to PHP...
php $start_mem=memory_get_usage();functionyield_range($start,$end){while($start<=$end){$start++;yield$start;}}foreach(yield_range(0,9999)as$item){//echo $item.',';}$end_mem=memory_get_usage();echo" use mem : ".($end_mem-$start_mem)/1024.'bytes'.PHP_EOL; 一运行,有点儿...
$_SERVER['SERVER_ADDR']:@gethostbyname($_SERVER['SERVER_NAME']);$this->S['DomainIP'] = @get_current_user().' - '.$_SERVER['SERVER_NAME'].'('.$domain.')';$this->S['Flag'] =empty($this->sysInfo['win_n'])?@php_uname():$this->sysInfo['win_n'];$os=explode(" ",php...
echo sprintf("Current memory_limit value is: %s.", ini_get('memory_limit')); echo sprintf('Amount of memory allocated to PHP: %0.3fM.', memory_get_usage() / $M); $s = str_repeat("a", $M * $char_count);//sleep(30);echo sprintf('Amount of memory allocated to PHP: %0.3f...
getrusage ini_alter ini_get ini_get_all ini_restore ini_set magic_quotes_runtime memory_get_usage php_sapi_name php_uname phpinfo phpversion putenv restore_include_path set_include_path set_magic_quotes_runtime set_time_limit sys_get_temp_dir ...
could blow up the PHPmemory_limitif using ZendMM. Thus use another allocator (like libc) but take care: your extension will grow the current process heap size. That cannot be seen usingmemory_get_usage()in PHP, but by analyzing the current heap with the OS facilities (like/proc/{pid}/...
如果你读取一个大文件,然后使用memory_get_peak_usage(),你会注意到生成器的代码会使用固定的内存,无论这个文件有多大。它每次进度去一行。而是用file_get_contents()函数读取整个文件,会使用更大的内存。这就是在迭代处理这类事物时,生成器的能给我们带来的优势!
echo sprintf("Current memory_limit value is: %s.", ini_get('memory_limit')); echo sprintf('Amount of memory allocated to PHP: %0.3fM.', memory_get_usage() / $M); $s = str_repeat("a", $M * $char_count); //sleep(30); echo sprintf...
a 函数说明 abs 绝对值 acos 反余弦 acosh 反双曲余弦 addcslashes 以 C 语言风格使用反斜线转义字符串中的字符 addslashes 使用反斜线引用字符串 apache_child_terminate 在本次请求结束后终止 apache 子进程 apache_geten
exhausted (tried to allocate 268435464 bytes) // 使用 yield 优化: $start_time = microtime(true); function yieldMemory() { for ($i = 0; $i < 1000000; $i++) { yield $i + 1; if (($i % 200000) == 0){ echo "memory: ", round(memory_get_usage() / 1024 / 1024, 2)...