PHP Function List

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  php.net/true - 20 Apr 2012

• 布尔类型 - Manual

  布尔类型 这是最简单的类型。boolean 表达了真值，可以为 TRUE 或 FALSE。 Note: 布尔类型是 PHP 4 引进的。

  php.net/manual/zh/language.types.boolean.php - 28 May 2012 - Cached

• return - Manual

  direct true 0.59850406646729 direct false 0.62642693519592 indirect true 0.75077891349792 indirect false 0.73496103286743 It is generally more true, because indirect method implies creating additional variable and assigning a value to it.

  php.net/manual/en/function.return.php - 24 May 2012 - Cached

• Booleans - Manual

  The value true is also not a constant for 1, it is a special boolean value that indicates true. It just happens to cast to integer 1 when you print it or use it in an expression, but it's not the same as a constant for the integer value 1 and you shouldn't ...

  php.net/manual/en/language.types.boolean.php - 25 May 2012 - Cached

• microtime - Manual

  I have been getting negative values substracting a later microtime(true) call from an earlier microtime(true) call on Windows with PHP 5.3.8 Produces negative valuesfor($i = 0; $i<100; $i++)

  php.net/manual/en/function.microtime.php - 24 May 2012 - Cached

• Logical Operators - Manual

  Logical Operators Example Name Result $a and $b And TRUE if both $a and $b are TRUE. $a or $b Or TRUE if either $a or $b is TRUE. $a xor $b Xor TRUE if either $a or $b is TRUE, but not both.! $a Not TRUE if $a is not TRUE. $a && $b

  php.net/manual/en/language.operators.logical.php - 25 May 2012 - Cached

• print_r - Manual

  If given an array, values will be presented in a format that shows keys and elements. Similar notation is used for object s. When the return parameter is TRUE, this function will return a string.

  php.net/manual/en/function.print-r.php - 20 May 2012 - Cached

• isset - Manual

  return ($w == $val) ? true : false; }} /** * isset_gt0() * * As above, but returns true only if var is set and it's length is > 0 */ function isset_gt0(&$x) { if (isset($x) && strlen($x) > 0) { return true; }

  php.net/manual/en/function.isset.php - 30 May 2012 - Cached

• PDO::setAttribute - Manual

  Instead, set it in the options array when instantiating the PDO connection. Example: <?php $con = new PDO ("mysql:dbname=dbname;host=some.ip", "user", "pass", array( PDO:: MYSQL_ATTR_USE_BUFFERED_QUERY => true,

  php.net/manual/en/pdo.setattribute.php - 26 May 2012 - Cached

• uniqid - Manual

  If more_entropy is TRUE, it will be 23 characters. more_entropy If set to TRUE, uniqid() will add additional entropy (using the combined linear congruential generator) at the end of the return value, which increases the likelihood ...

  php.net/manual/en/function.uniqid.php - 27 May 2012 - Cached

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