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PHP获取配置信息函数:ini_get详解

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Release： 2016-06-20 13:04:21
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PHP获取配置信息函数:ini_get详解

函数：ini_get(PHP 4, PHP 5)

作用：获取一个配置选项的值，是获取php.ini里的环境变量的值.

基础语法：string ini_get ( string varname )

函数参数：varname #配置选项名称。

返回值：#成功是返回配置选项值的字符串，null 的值则返回空字符串。如果配置选项不存在，将会返回 FALSE。

#注：返回值如果为布尔型则为0或1案例展示例如：

php.ini文件中包含了以下的设置：

register_globals = Off

post_max_size = 2M

PHP部分我们可以这样获取：

<?php<br />echo 'display_errors = ' . ini_get('display_errors') . "\n";<br />echo 'register_globals = ' . ini_get('register_globals') . "\n";<br />echo 'post_max_size = ' . ini_get('post_max_size') . "\n";<br />echo 'post_max_size+1 = ' . (ini_get('post_max_size')+1) . "\n";<br />echo 'post_max_size in bytes = ' . return_bytes(ini_get('post_max_size'));<br /><p>?><span style="font-size: 14px;">
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如果想获取整个php.ini里的变量值,我们可以用ini_get的加强函数 ini_get_all()

ini_get_all()函数以数组的形式返回整个php的环境变量

当然如果你只是想了解下php的配置信息用
<?php<br />phpinfo();<br />?>
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更方便。


Related labels：
php function
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