08-06-2006
print the name of variable
How can I pass the name of the variable inside a for statment
I have a script something like below:
classA=12
classB=14
classC=16
# classD = 20
all_class="classA classB classC"
for i in $all_class
do
echo $i = $($i) #<---- this one not work
#echo $i = $(echo $i) # <---- this one not work too
#echo classA = $classA # <----- it can pass the classA = 12
done
Also, how can i do if i don't know how many class will be there and i don't want to change the all_class value ?
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LEARN ABOUT PHP
ignore_user_abort
IGNORE_USER_ABORT(3) 1 IGNORE_USER_ABORT(3)
ignore_user_abort - Set whether a client disconnect should abort script execution
SYNOPSIS
int ignore_user_abort ([string $value])
DESCRIPTION
Sets whether a client disconnect should cause a script to be aborted.
When running PHP as a command line script, and the script's tty goes away without the script being terminated then the script will die the
next time it tries to write anything, unless $value is set to TRUE
PARAMETERS
o $value
- If set, this function will set the ignore_user_abort ini setting to the given $value. If not, this function will only return the
previous setting without changing it.
RETURN VALUES
Returns the previous setting, as an integer.
EXAMPLES
Example #1
A ignore_user_abort(3) example
<?php
// Ignore user aborts and allow the script
// to run forever
ignore_user_abort(true);
set_time_limit(0);
echo 'Testing connection handling in PHP';
// Run a pointless loop that sometime
// hopefully will make us click away from
// page or click the "Stop" button.
while(1)
{
// Did the connection fail?
if(connection_status() != CONNECTION_NORMAL)
{
break;
}
// Sleep for 10 seconds
sleep(10);
}
// If this is reached, then the 'break'
// was triggered from inside the while loop
// So here we can log, or perform any other tasks
// we need without actually being dependent on the
// browser.
?>
NOTES
PHP will not detect that the user has aborted the connection until an attempt is made to send information to the client. Simply using an
echo statement does not guarantee that information is sent, see flush(3).
SEE ALSO
connection_aborted(3), connection_status(3), Connection Handling for a complete description of connection handling in PHP. .
PHP Documentation Group IGNORE_USER_ABORT(3)