在語言結構（if，else，while，switch，for，foreach）中和類（class）、函數（function）、方法（method）中，左、右大括號必須單獨占一行，與其聲明處在相同的縮進級別。 例如: /* These are all wrong. */ if (condition) { while (condition2) { ... } } else { ... } /* These are right. */ if (condition) { while (condition2) { ... } } else { ... } /* These are all wrong. */ for ($i = 0;$i < $size;$i++) { ... } /* These are right. */ for ($i = 0;$i < $size;$i++) { ... } /* These are all wrong. */ while (condition) { ... } /* These are right. */ while (condition) { ... } /* These are all wrong. */ switch (condition) { case: 1 ... default: ... } /* These are right. */ switch (condition) { case: 1 ... default: ... } /* These are right. */ function do_stuff() { ... } /* These are right. */ class some_class { function a_method() { ... } }