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How do you create php web counter and prevent it from counting when returned to the subpages?
I made a few weeks ago:
session_start(); //you can also use a cookie, I prefer session.
error_reporting(0); //to avoid notice in checking if counted.
if(!isset($_SESSION['cont'])) { //check if not counted yet.
error_reporting(E_ALL); //activate error reporting again.
$dir = 'PATH FOR THE VAR TO BE SOTRED IN'; //THIS MUST BE A PHP file !!
if(include($dir)) {
if(isset($cnt)) {
$cnt ++;
$cntr = '<?php'.sprintf(PHP_EOL).' $cnt = '.$cnt.';'.sprintf(PHP_EOL).' ?>';
file_put_contents($dir, $cntr);
$_SESSION['cont'] = true;
} else {
$cnt = 1;
$cntr = '<?php'.sprintf(PHP_EOL).' $cnt = '.$cnt.';'.sprintf(PHP_EOL).' ?>';
file_put_contents($dir, $cntr);
$_SESSION['cont'] = true;
}
} else {
echo 'Wrong file path '.$dir;
}
}
Good luck :)
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in digital counters , due to unwanted spikes there might be a condition of stuck in the middle or at the beginning of a counting process.this provides unstable states and results in abnormal or ambiguous results . so we have to answer yet another question that how to prevent lock out condition ? in order to prevent lock out condition, use PRESET option and clear option in a flip flop and hence the registers will be cleared and we can go for the smooth functioning of counter circuits
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in digital counters , due to unwanted spikes there might be a condition of stuck in the middle or at the beginning of a counting process.this provides unstable states and results in abnormal or ambiguous results . so we have to answer yet another question that how to prevent lock out condition ? in order to prevent lock out condition, use PRESET option and clear option in a flip flop and hence the registers will be cleared and we can go for the smooth functioning of counter circuits
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