Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
Cross platform newline in PHP
Answer:
In PHP, if you want to print out a newline character, you can use the "\n" character
<?php
echo "Hello World\n";
But the \n" character only work in Linux/UNIX, to make it work for both Windows, Mac and Linux/UNIX platforms, you can use a special constant PHP_EOL.
<?php
echo "Hello World" . PHP_EOL;
Update the Channel List using PHP/PEAR
Answer:
PEAR is a framework and distribution system for reusable PHP components. To update the channel list, what you need to do is type the following command.
# sudo pear channel-update pear.php.net
Syntax highlighting in PHP
Anwser:
PHP has a built-in function that help to to syntax highlight your PHP codes.
E.g.
<?php
$str = <<<EOT
echo "This is a test";
EOT;
highlight_string($str);
Solving the warning message "Xdebug MUST be loaded as a Zend extension"
Answer:
If you have installed the xdebug, and the PHP interpreter show the following warning message every time you execute the php command.
Xdebug MUST be loaded as a Zend extension
It can be solved by adding the following line in your php.ini (Replace the path of you xdebug.so if they are different.)
zend_extension="/usr/local/php/modules/xdebug.so"
And remember to remove any statement like the following which caused the problem..
extension="xdebug.so"
Output the parsable string representation of a variable in PHP
Answer:
var_export allows you to outputs or returns a parsable string representation of a variable.
Example:
<?php
$a = array (
"foo" => 1,
"bar" => 2
);
echo var_export($a);
It gives:
array (
'foo' => 1,
'bar' => 2,
)So you can use the output to declare the variable again in another PHP file.
