By default PHP script execution time is set for 30 seconds at php.ini file. This is the time limit set for all the files to finish its execution. If the file takes more than this set time then the execution of the script will be stopped and error message will be displayed like this.
Fatal error: Maximum execution time of 30 seconds exceeded in C:\wamp\test.php on line 10
This maximum execution time limit is set inside the php.ini file like this.
Fatal error: Maximum execution time of 30 seconds exceeded in C:\wamp\test.php on line 10
This maximum execution time limit is set inside the php.ini file like this.
max_execution_time = 30 ; Maximum execution time of each script, in seconds
We will use 'time stamp' to find out the delay between starting and ending of a script execution. We will store the 'time stamp' value at the starting of the script and then again we will record at the end of the script . The difference of these two values will give us idea how much time the script has taken to execute. Note that here between two values of time we will try to add some delay by using 'sleep() function'. This sleep function takes numeric value in seconds and delay the execution for that many seconds. We can also create delay by using 'for loop' but this is a better solution. Here is the code.
We can set the time to unlimited value by making it to 0 value. Like this
$t1=time();
sleep(20);
$t2=time(); $t_lapsed=$t2-$t1;
echo "Total time lapsed = $t_lapsed";
We have introduced a delay of 20 seconds and this will execute without any problem, now increase the sleep value to 50 seconds and on execution you will get the error message saying maximum execution time exceeded. This is because by default the maximum execution time set at php.ini is 30 seconds. Now let us change the above code by adding one line set_time_limit(60). Here is the codesleep(20);
$t2=time(); $t_lapsed=$t2-$t1;
echo "Total time lapsed = $t_lapsed";
set_time_limit ( 60 ) ;
$t1=time(); sleep(50);
$t2=time();
$t_lapsed=$t2-$t1;
echo "Total time lapsed = $t_lapsed";
Now the script will execute fine without any error message. We can see the total time taken by the script.$t1=time(); sleep(50);
$t2=time();
$t_lapsed=$t2-$t1;
echo "Total time lapsed = $t_lapsed";
We can set the time to unlimited value by making it to 0 value. Like this
set_time_limit (0);
