How can while loops in PHP impact the performance of Apache servers and what are the alternatives?

While loops in PHP can impact the performance of Apache servers by causing high CPU usage and potentially leading to server crashes if not properly optimized. One alternative to using while loops is to use for loops, which have better performance in most cases. Additionally, utilizing built-in PHP functions or array functions can also help improve performance. 

// Example of using a for loop as an alternative to a while loop
for ($i = 0; $i < 10; $i++) {
    // Code block to be executed
}

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while loops PHP performance impact Apache servers alternatives

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