This is the code:
while test 1 -eq 1
do
read a
$a
if test $a = stop
then
break
fi
done
I read a command on every loop an execute it.
I check if the string equals the word stop to end the loop,but it say that I gave too many arguments to test.
For example echo hello.
Now the... (1 Reply)
I want to make a script that check for the argument passed to it and generates an error in case any character/string argument passed to it.
I am using below code, but its not working. can anyone help.
#!/bin/bash
if ]; then
echo 'An integer argument is passed to the script hence... (3 Replies)
I want to check (using bash condition test function) if string contains three spaces, ignoring last three spaces at the end of string.
string_to_report='foo bar foo bar '
string_to_ignore='foo bar ' (8 Replies)
Discussion started by: useretail
8 Replies
LEARN ABOUT PHP
constant
CONSTANT(3) 1 CONSTANT(3)constant - Returns the value of a constantSYNOPSIS
mixed constant (string $name)
DESCRIPTION
Return the value of the constant indicated by $name.
constant(3) is useful if you need to retrieve the value of a constant, but do not know its name. I.e. it is stored in a variable or
returned by a function.
This function works also with class constants.
PARAMETERS
o $name
- The constant name.
RETURN VALUES
Returns the value of the constant, or NULL if the constant is not defined.
ERRORS /EXCEPTIONS
An E_WARNING level error is generated if the constant is not defined.
EXAMPLES
Example #1
constant(3) example
<?php
define("MAXSIZE", 100);
echo MAXSIZE;
echo constant("MAXSIZE"); // same thing as the previous line
interface bar {
const test = 'foobar!';
}
class foo {
const test = 'foobar!';
}
$const = 'test';
var_dump(constant('bar::'. $const)); // string(7) "foobar!"
var_dump(constant('foo::'. $const)); // string(7) "foobar!"
?>
SEE ALSO define(3), defined(3), The section on Constants.
PHP Documentation Group CONSTANT(3)