Running Terser from a PHP script - a step-by-step guide

I have a PHP script that streamlines my development-to-production process. I am looking to utilize Terser for minifying the JavaScript files in my project. However, when I try to execute it using the php exec() function, I receive a result value of 1.

This indicates an undefined error. Unfortunately, I do not have further information about what went wrong, but I conducted the following tests:

  • The same Terser command runs successfully from a regular shell.
  • Executing exec('ls') displays the contents of the directory where the php script is located.
  • The Terser command is located in /usr/local/bin, and even after adding this path before the command, the result remains the same.
  • All users have read permission on the command and the rest of the Terser files.
  • All users have read & write permission on the directory containing the JS files and the target directory.

stderr contains:

node: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.29' not found (required by /lib/x86_64-linux-gnu/libnode.so.72)
node: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.26' not found (required by /lib/x86_64-linux-gnu/libnode.so.72)
node: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /lib/x86_64-linux-gnu/libnode.so.72)
node: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /lib/x86_64-linux-gnu/libnode.so.72)
node: /opt/lampp/lib/libstdc++.so.6: version `CXXABI_1.3.9' not found (required by /lib/x86_64-linux-gnu/libnode.so.72)
node: /opt/lampp/lib/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /lib/x86_64-linux-gnu/libicui18n.so.70)
node: /opt/lampp/lib/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /lib/x86_64-linux-gnu/libicuuc.so.70)

I am running this on Ubuntu 23.10

If anyone has any insights on how to troubleshoot and execute Terser from a PHP script, your input would be greatly appreciated.

phplinuxterser

Answer №1

After some investigation, it was discovered that Apache actually includes a set of useful libraries and PHP will try to utilize those first before seeking out the system libraries while running a command.

These libraries are older versions compared to what most updated systems have.

By clearing the LD_LIBRARY_PATH, PHP will no longer make the assumption that it should rely solely on what is included with Apache.

putenv('LD_LIBRARY_PATH=.');

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