php_PHP チュートリアルでの get_define_constants 関数の使用法の分析例

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define("MY_CONSTANT", 1);

print_r(get_define_constants(true));

?>

上記の例は次のような出力を行います:

配列

(

[内部] => 配列

(

[E_ERROR] => 1

[E_WARNING] => 2

[E_PARSE] => 4

[E_NOTICE] => 8

[E_CORE_ERROR] => 16

[E_CORE_WARNING] => 32

[E_COMPILE_ERROR] => 64

[E_COMPILE_WARNING] =>128

[E_USER_ERROR] =>256

[E_USER_WARNING] => 512

[E_USER_NOTICE] =>1024

[E_ALL] => 2047

[TRUE] => 1

)

[pcre] => 配列

(

[PREG_PATTERN_ORDER] => 1

[PREG_SET_ORDER] => 2

[PREG_OFFSET_CAPTURE] => 256

[PREG_SPLIT_NO_EMPTY] => 1

[PREG_SPLIT_DELIM_CAPTURE] => 2

[PREG_SPLIT_OFFSET_CAPTURE] => 4

[PREG_GREP_INVERT] => 1

)

[ユーザー] => 配列

(

[MY_CONSTANT] => 1

)

)