Overwrite Line in File with PHP

Question

What is the best way to overwrite a specific line in a file? I basically want to search a file for the string \'@parsethis\' and overwrite the rest of that line with somethi

Answer 1

This is a solution that works for rewriting only one line of a file in place with sed from PHP. My file contains only style vars and is formatted: $styleVarName: styleVarProperty;\n
For this I first add the ":" to the ends of myStyleVarName, and sed replaces the rest of that line with the new property and adds a semicolon. Make sure characters are properly escaped in myStyleVarProp.

$command = "pathToShellScript folder1Name folder2Name myStyleVarName myStyleVarProp";
shell_exec($command);

/* shellScript */
#!/bin/bash
file=/var/www/vhosts/mydomain.com/$1/$2/scss/_variables.scss
str=$3"$4"
sed -i "s/^$3.*/$str;/" $file