FLOATVAL(3) 1 FLOATVAL(3)floatval - Get float value of a variableSYNOPSIS
float floatval (mixed $var)
DESCRIPTION
Gets the float value of $var.
PARAMETERS
o $var
- May be any scalar type. floatval(3) should not be used on objects, as doing so will emit an E_NOTICE level error and return 1.
RETURN VALUES
The float value of the given variable. Empty arrays return 0, non-empty arrays return 1.
Strings will most likely return 0 although this depends on the leftmost characters of the string. The common rules of float casting apply.
EXAMPLES
Example #1
floatval(3) Example
<?php
$var = '122.34343The';
$float_value_of_var = floatval($var);
echo $float_value_of_var; // 122.34343
?>
Example #2
floatval(3) non-numeric leftmost characters Example
<?php
$var = 'The122.34343';
$float_value_of_var = floatval($var);
echo $float_value_of_var; // 0
?>
SEE ALSO boolval(3), intval(3), strval(3), settype(3), Type juggling.
PHP Documentation Group FLOATVAL(3)
Check Out this Related Man Page
IS_FLOAT(3) 1 IS_FLOAT(3)is_float - Finds whether the type of a variable is floatSYNOPSIS
bool is_float (mixed $var)
DESCRIPTION
Finds whether the type of the given variable is float.
Note
To test if a variable is a number or a numeric string (such as form input, which is always a string), you must use is_numeric(3).
PARAMETERS
o $var
- The variable being evaluated.
RETURN VALUES
Returns TRUE if $var is a float, FALSE otherwise.
EXAMPLES
Example #1
is_float(3) example
<?php
if (is_float(27.25)) {
echo "is float
";
} else {
echo "is not float
";
}
var_dump(is_float('abc'));
var_dump(is_float(23));
var_dump(is_float(23.5));
var_dump(is_float(1e7)); //Scientific Notation
var_dump(is_float(true));
?>
The above example will output:
is float
bool(false)
bool(false)
bool(true)
bool(true)
bool(false)
SEE ALSO is_bool(3), is_int(3), is_numeric(3), is_string(3), is_array(3), is_object(3).
PHP Documentation Group IS_FLOAT(3)
Hi there, if i have some strings ie
test_324423
test_242332
test_767667
but I only want the number part (the bolded bit) how do I strip the leftmost 5 characters from the output so that i will have just
324423
242332
767667
any help would be greatly appreciated
Gary (5 Replies)
Hi experts,
I am facing a big problem. i use solaris 9. i found size of /var is increasing day by.
snapshot of a yester moring-
/dev/vx/dsk/var 15G 14G 1.1G 94% /var
snapshot of a yesterday everning-
/dev/vx/dsk/var 15G 14G 824M 95% /var
I am... (11 Replies)
hi ,
i want to store variable but i get always error when i excute this command ligne :
var = awk '{print $1}' file1
echo $var
how can i store the var?
thanks (7 Replies)
dear all,
I have some problem in my file system :
df -k result :
...
/dev/md/dsk/d3 3101839 2736380 303423 91% /var
...
it occupied around 2.7 gb
but when I tried command
du -sk /var
813991 /var
so /var only have around 800Mb , Do you know why there is many difference... (6 Replies)
Hi,
I have file which users like
filename ->"readfile", following entries
peter
john
alaska
abcd
xyz
and i have directory /var/
i want to do first cat of "readfile" line by line and first read peter in variable and also cross check with /var/ how many directories are avaialble... (8 Replies)
Hi Guys,
File is containing data
Col1 Col2
ListPrice List Price
Price Average Selling Price - Actual
ProjPrice Average Selling Price
ProjPrice Launch Price
ProjCost Cost
Now i need to print col2 on the basis of col1
i.e if i Pass Price it should display only "Average... (7 Replies)
Hello experts,
How we can find out,that what is type of a scalar variable? i.e a scalar var contain a number or a string.
Thanks in advance. (8 Replies)
Hi All,
I just want to append the value in variable at the end of the file.
var=1234
sed -e "$a $var" file1 > file 2.
But I get this error
sed: -e expression #1, char 4: unknown command: `1'
Kindly let m know how can I do that... (5 Replies)
Hi All,
I have Solaris-10 machine. Yesterday I patched it with Solaris-10 patch Cluster. Since then glance software is filling up /var/core continuously. In every few minutes, it will fill /var to 100%.
Glance runs through /etc/init.d/mwa and I already stopped it, still core files are... (15 Replies)
i have four files that have 777 permission
find /var/tttt/ -type f -perm 0777
/var/ttt/1
/var/ttt/2
/var/ttt/3
/var/ttt/4
if any file other than above 4 have 777 permission then move that file to /garbage/yyyy-mmm-dd . Also email me that this have abcd have 777 permission. (6 Replies)
Hi there,
I'm working on a Suse 8 based system and picked up that the crontab was missing. after some investigation i realized that the hole /var directory is missing. :mad:
I would like to now if its common for this directory to go missing?
Can I copy another Suse 8 /var directory to this... (10 Replies)
Hi all
I have a problem with this var :(
I dont know why I cant get it ?!!?!
Im trying with
newvar1=$(($var+1))
newvar1=$(($var + 1))
newvar1=`expr $var + 1`
expr: syntax error
expr: syntax error
expr: syntax error
but it not work :( in other script its ok and working
tell me... (8 Replies)
Hi all,
Exactly like my title says.
I am learning PHP and MySQL and I used to use /var/www/ to host (contain or store) my files (.htm/.php) for testing. I could configure, finally, apache2 to use ~/public_html instead.
Now I when I tried to use $_SERVER it still directs (I used echo to show... (7 Replies)
friends that way I can validate that the value is numeric taken
instance
var = 12re
if var = numeric then a
echo "Numerical
else
echo "not mumerico"
fi
edit by bakunin: please use CODE-tags for code, data and terminal output (yourself). (9 Replies)
I have this code that sometimes return a false value and the code inside the if statement gets executed and error out. Any idea why? thanks.
So I set a debug and see what the value for $ScriptElapsedTime
Here is the value I got ScriptElapsedTime='03:20'. Base on this value the if... (10 Replies)