个回答

• 后来21

  2016-08-31 22:00:48

  <?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; 

  ?>

    我把双引号去了，还不对       这是去掉双引号的结果  Parse error: syntax error, unexpected '123' (T_LNUMBER), expecting ',' or ';' in /54/743/ErX2/index.php on line 13    
  

  0

• qq_卡斌引尖_03822121

  2016-08-30 23:02:40

  为啥在第四行加上双引号呢，去掉不就行了

  0