<?php 

echo $m1 = memory_get_usage(); 

echo "<br />";

“$var_string = "123";” 

echo $m2 = memory_get_usage()-$m1; 

echo "<br />";

“$n=123;” 

echo $m3 = memory_get_usage()-$m1-$m2; 

echo "<br />";

 “$f=123.00;”

echo $m4 = memory_get_usage()-$m1-$m2-$m3; 

echo "<br />";

“$var_array = array("123");” 

echo $m5 = memory_get_usage()-$m1-$m2-$m3-$m4; 

?>

我做的为啥子没得结果呢！！