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Top Forums UNIX for Advanced & Expert Users Pass by reference in shell functions Post 302115386 by sonaluphale on Tuesday 24th of April 2007 10:29:58 AM
Old 04-24-2007
Maybe I will give a sample script

#!/bin/sh
check() {
if [ ! -d ${1} ]; then
echo "${1} is not a dir"; exit 1
fi
echo dir
}
home=/u4/k
check home

----------------------
1) if /u4/k does not exist then the desired output is -
home
home (/u4/k) is not a dir

The idea is to give in a message both the variable and its value. So this check
can be made generic. In windows, this can be achieved.

Thanks,
Sonal
 

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PHP_CHECK_SYNTAX(3)							 1						       PHP_CHECK_SYNTAX(3)

php_check_syntax - Check the PHP syntax of (and execute) the specified file

SYNOPSIS
bool php_check_syntax (string $filename, [string &$error_message]) DESCRIPTION
Performs a syntax (lint) check on the specified $filename testing for scripting errors. This is similar to using php -l from the commandline except that this function will execute (but not output) the checked $filename. For example, if a function is defined in $filename, this defined function will be available to the file that executed php_check_syntax(3), but output from $filename will be suppressed. Note For technical reasons, this function is deprecated and removed from PHP. Instead, use php -l somefile.php from the commandline. PARAMETERS
o $filename - The name of the file being checked. o $error_message - If the $error_message parameter is used, it will contain the error message generated by the syntax check. $error_message is passed by reference. RETURN VALUES
Returns TRUE if the lint check passed, and FALSE if the link check failed or if $filename cannot be opened. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.0.5 | | | | | | | This function was removed from PHP. | | | | | 5.0.3 | | | | | | | Calling exit(3) after php_check_syntax(3) | | | resulted in a Segfault. | | | | | 5.0.1 | | | | | | | $error_message is passed by reference. | | | | +--------+---------------------------------------------------+ EXAMPLES
php -l somefile.php The above example will output something similar to: PHP Parse error: unexpected T_STRING in /tmp/somefile.php on line 81 SEE ALSO
include(3), is_readable(3). PHP Documentation Group PHP_CHECK_SYNTAX(3)
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