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Check if PHP session has already started
I have a PHP file that is sometimes called from a page that has started a session and sometimes from a page that doesn't have session started. Therefore when I have session_start() on this script I sometimes get the error message for "session already started". For that I've put these lines:
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Get the current script file name
If I have PHP script, how can I get the filename from inside that script?
16 Answers
1...
How to find the php.ini file used by the command line?
I need to enable pdo_mysql in my EasyPhp environment, so I went to php.ini file and uncommented the following line:
14 Answ...
How to Set Variables in a Laravel Blade Template
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If you do want to do this in your blade view, you can either just open a php tag as you wrote it or register a new blade tag. Just an example:
<?php
/**
* <code>
* {? $old_section = "whatever" ?}
* </code>
*/
Blade::extend(function($value) {
return preg_replace('/\{\?(.+)\?...
华为公司的新产品研发流程管理 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...要信息或是已知的也或是可知的，只是没有人提出正确的问题或没有人做出正确的决策而已。
研究表明，如果一个公司较早做出取消或调整的决定，那么在那些没有投入市场的产品上所浪费的便要减少许多。一流公司在计...
How do you set up use HttpOnly cookies in PHP
How can I set the cookies in my PHP apps as HttpOnly cookies ?
10 Answers
10
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nginx showing blank PHP pages
I have setup an nginx server with php5-fpm. When I try to load the site I get a blank page with no errors. Html pages are served fine but not php. I tried turning on display_errors in php.ini but no luck. php5-fpm.log is not producing any errors and neither is nginx.
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Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
... operator to
copy an array by reference.
And the given example :
<?php
$arr1 = array(2, 3);
$arr2 = $arr1;
$arr2[] = 4; // $arr2 is changed,
// $arr1 is still array(2, 3)
$arr3 = &$arr1;
$arr3[] = 4; // now $arr1 and $arr3 are the same
?>
For the first part, the best ...
“date(): It is not safe to rely on the system's timezone settings…”
I got this error when I requested to update the PHP version from 5.2.17 to PHP 5.3.21 on the server.
24 Answers
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How to calculate the difference between two dates using PHP?
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Use this for legacy code (PHP < 5.3). For up to date solution see jurka's answer below
You can use strtotime() to convert two dates to unix time and then calculate the number of seconds between them. From this it's rather easy to calculate differ...