Php replace variable in text file

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Collectives on Stack Overflow. Learn more. Asked 8 years, 9 months ago. Active 1 year, 11 months ago. Viewed 9k times. Improve this question. There are a lot of ways to approach this, but the all boil down to: write the interpolated result to a buffer or write to a different file. Because your example looks config and deploy related, I prefer to use a make esque build and install workflow, where we write the interpolated results to a dist or build directory, and then work against that.

Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Replace environment variables in a file with their actual values? Ask Question. Asked 5 years, 6 months ago. Active 2 months ago. Viewed k times. Improve this question. Robert Fraser Robert Fraser 1 1 gold badge 6 6 silver badges 7 7 bronze badges.

When will you do something with file cat, echo, source,… the variable will subtitute by its value — Costas. Is the contents of this xml file up to you? If so, parameterized xslt offers another way to inject values and unlike envsubst and its ilk guarantees well formed xml as a result.

Add a comment. Active Oldest Votes. Improve this answer. That's good. Docker images should be lightweight and tailor made. The array is used in the string replace method as search string or needle:. Just extending the above example by creating another array of two elements. This array contains the replacement terms.

See the example below:. In this example, two HTML dropdowns are created with pre-defined values. Make sure you have write permissions on the msghistory. Is this right? You have a syntax error. It's something small im missing Show 1 more comment. Active Oldest Votes. Improve this answer. Spencer O'Reilly 1 1 gold badge 6 6 silver badges 18 18 bronze badges. Ahmad Zafar M. Ahmad Zafar 4, 3 3 gold badges 30 30 silver badges 44 44 bronze badges.

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