Say you have four values in variable VALS like this a b c d then you can build an array containing these with a simple set statement.
or if you have 4 separate variables A1 thru A4 you could use eval like this:
i have to store a data more than 100000.
i don't know the size of the data whether it may be 100000 or 1000000.
so how can i define variable size;
example
char abc;
but i don't know the size so how can i give array size??
in one sentence
how can i give the array size dynamically so that i... (6 Replies)
Hello all,
I need to do scripts total up the size in selected extension file for example motion.mov and segmentation.avi is in Label Media. For file info.doc and calc.xls in Label Document.
I need output will be like this:
count 1
Media,,2 GB
count 2
Document,,4 GB
My problem is,... (16 Replies)
Hi,
I am having two set of files with different number of columns and rows.
A set of files have only single row with 20 columns.
B set of files have 1000s of rows with 5 columns.
both set contains equal number of files.
I want to save all the 20 columns of A in variables one by one and... (21 Replies)
hi
My script as below
#!/bin/ksh
for i in `seq 1 7`
do
a=$(awk '{print $i}' /home/rama/expenese.txt)
done
for i in `seq 1 7`
do
echo "${a}"
done
content of expense.txt is as below
5032 210179 3110 132813874 53488966 11459221 5300794
I want output as... (6 Replies)
Hi there,
im a beginner to the shell scripting.i trying to extract a table from a db(IMD) and i have to get the count of that table and size of the file.
can you help me out how to write the shall scriping for the above query. (2 Replies)
This is the sample json I have pasted here. I want all the IP address strings to be converted into an array. For example "10.38.32.202" has to be converted to everywhere in the JSON. There are multiple IPs in a JSON I am pasting one sample object from the JSON. But the IPs already in an Array... (11 Replies)
Discussion started by: vinshas1
11 Replies
LEARN ABOUT PHP
echo
ECHO(3) 1 ECHO(3)echo - Output one or more stringsSYNOPSIS
void echo (string $arg1, [string $...])
DESCRIPTION
Outputs all parameters.
echo is not actually a function (it is a language construct), so you are not required to use parentheses with it. echo (unlike some other
language constructs) does not behave like a function, so it cannot always be used in the context of a function. Additionally, if you want
to pass more than one parameter to echo, the parameters must not be enclosed within parentheses.
echo also has a shortcut syntax, where you can immediately follow the opening tag with an equals sign. Prior to PHP 5.4.0, this short syn-
tax only works with the short_open_tag configuration setting enabled.
I have <?=$foo?> foo.
PARAMETERS
o $arg1
- The parameter to output.
o $...
-
RETURN VALUES
No value is returned.
EXAMPLES
Example #1
echo examples
<?php
echo "Hello World";
echo "This spans
multiple lines. The newlines will be
output as well";
echo "This spans
multiple lines. The newlines will be
output as well.";
echo "Escaping characters is done "Like this".";
// You can use variables inside of an echo statement
$foo = "foobar";
$bar = "barbaz";
echo "foo is $foo"; // foo is foobar
// You can also use arrays
$baz = array("value" => "foo");
echo "this is {$baz['value']} !"; // this is foo !
// Using single quotes will print the variable name, not the value
echo 'foo is $foo'; // foo is $foo
// If you are not using any other characters, you can just echo variables
echo $foo; // foobar
echo $foo,$bar; // foobarbarbaz
// Some people prefer passing multiple parameters to echo over concatenation.
echo 'This ', 'string ', 'was ', 'made ', 'with multiple parameters.', chr(10);
echo 'This ' . 'string ' . 'was ' . 'made ' . 'with concatenation.' . "
";
echo <<<END
This uses the "here document" syntax to output
multiple lines with $variable interpolation. Note
that the here document terminator must appear on a
line with just a semicolon. no extra whitespace!
END;
// Because echo does not behave like a function, the following code is invalid.
($some_var) ? echo 'true' : echo 'false';
// However, the following examples will work:
($some_var) ? print 'true' : print 'false'; // print is also a construct, but
// it behaves like a function, so
// it may be used in this context.
echo $some_var ? 'true': 'false'; // changing the statement around
?>
NOTES
Note
Because this is a language construct and not a function, it cannot be called using variable functions.
SEE ALSO print(3), printf(3), flush(3), Heredoc syntax.
PHP Documentation Group ECHO(3)