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Does flush() Not Work? Your Web Server Settings Might Be the Issue

gitbox 2025-09-20
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<h1>Does flush() Not Work? Your Web Server Settings Might Be the Issue</h1>
<p>In PHP development, the `flush()` function is commonly used to send output to the client immediately, rather than waiting until the script finishes execution. This is particularly useful in long-running tasks, real-time log displays, or updating progress bars. However, many developers encounter a problem where calling <code>flush()

With the above method, you can ensure that flush() works in most cases. However, keep in mind that output delays could be caused by a combination of PHP, web server, and browser settings, and troubleshooting should be done at each layer.

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