个回答

• AJiu_

  2019-02-13 21:12:55

  $var_string = "123";
  

  不需要在$前，;后加“”

  0

• 破茧者

  2019-01-14 16:51:15

  <?php 

  echo $m1 = memory_get_usage(); 

  echo "<br />";

  $var_string = "1232";

  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; 

  ?>

  
  

  0