How can we increase the execution time of a PHP script?

• Default time allowed to execute for PHP scripts is 30 seconds mentioned in the php.ini file. The function used to set execution time is set_time_limit(int sec). If the value passed is ‘0’, it takes unlimited time. It should be noted that if the default timer is set to 30 sec, and 20 sec is specified in set_time_limit(), the script will run for 45 seconds. • This time can be increased by modifying the max_execution_time…

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what is the use of rand() in php?

It is used to generate random numbers. If called without the arguments it returns a pseudo-random integer between 0 and getrandmax(). If you want a random number between 6 and 12 (inclusive), for example, use rand(6, 12).This function does not generate cryptographically safe values, and should not be used for cryptographic uses. If you want a cryptographically secure value, consider using openssl_random_pseudo_bytes() instead.

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