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  1. Execute command via shell and return the complete output as a string

    • System

      system () is just like the C version of the function in that...

    • Exec

      Failing to do so will cause PHP to hang until the execution...

    • Passthru

      The passthru () function is similar to the exec () function...

    • Escapeshellarg

      The shell functions include exec (), system () and the...

    • Escapeshellcmd

      escapeshellcmd () escapes any characters in a string that...

  2. Jul 11, 2025 · In PHP, shell_exec () and exec () are functions used to execute external commands from within a script. While shell_exec () returns the entire output of the command as a string, exec () only returns the last line, offering more control over output handling.

  3. Jan 13, 2024 · In this tutorial, we covered the shell_exec() function in PHP, including its syntax, usage, security concerns, and potential alternatives. While it’s a powerful tool, always approach shell commands with security as a priority and respect PHP’s higher-level functions whenever possible.

  4. Feb 26, 2025 · This article explores the PHP shell_exec() and exec() functions, detailing their differences, usage, and security considerations. Learn how to execute shell commands safely and effectively in your PHP applications. Discover practical examples and best practices to enhance your coding skills.

  5. Nov 27, 2024 · The function shell_exec () in PHP allows us to execute shell commands directly from a PHP script and captures the output of the command as a string.

  6. Feb 23, 2021 · This tutorial explains how to use the shell_exec function in PHP in order to execute code via the shell and return the output as a string.

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  8. PHP 4, PHP 5, PHP 7, PHP 8 shell_exec - Execute command via shell and return the complete output as a string Manual Code Examples