How Can I Replace Specific Characters in a String Using strtr?

String Manipulation: Replacing Specific Characters

In programming tasks, the need to replace certain portions of a string with alternative content often arises. For instance, consider the scenario where you have the string "Hello, my name is Santa" and wish to substitute all occurrences of the letter "a" with a different character.

The task can be solved using the strtr function. This function takes two parameters: the input string and an array defining the character replacements. In our case, the array would look like this:

array('a' => '<replacement>')

Where is the character you want to replace "a" with.

The call to the strtr function would then be:

strtr("Hello, my name is Santa", array('a' => '<replacement>'));

The output would be the modified string with all occurrences of "a" replaced by the chosen replacement character.

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