Veronica's String Replace Demo

This shows how one can find tokens within a text file and replace those tokens with php variables.

Original text 

 Thank you for registering for our conference.
Please print out and keep this receipt.

Title: [TITLE]

Cost: $ [COST]

The dates of the Conference are: [DATES]

Please also pay special attention to the below instructions for how to
access your conference and be sure to attend the orientation during 
the week before it begins.  

Please let us know in the orientation/support forum if there are
problems.  We want your experience to be educational and for the 
challenges to be overcome.

Sincerely,

Veronica

Text after replaced text 

 Thank you for registering for our conference.
Please print out and keep this receipt.

Title: 2022 Conference on Technical Stuff

Cost: $ 249.95

The dates of the Conference are: Nov 18-25, 2024

Please also pay special attention to the below instructions for how to
access your conference and be sure to attend the orientation during 
the week before it begins.  

Please let us know in the orientation/support forum if there are
problems.  We want your experience to be educational and for the 
challenges to be overcome.

Sincerely,

Veronica
 
CODE FOLLOWS

<?php
include('includes/header.php');

error_reporting(E_ALL);    // set error reporting to all
?>

<h1>Veronica's String Replace Demo</h1>

<p>
    This shows how one can find tokens within a text file and
    replace those tokens with php variables.
</p>

<?php

// here's the original text
echo("<p> Original text </p>");

$text = '';
$fcontents = file('../docs/purchase_confirm.txt');  // get the file

$text = '';

// $fcontents is an array so append the contents of the array.
// certainly, I could use implode

foreach ($fcontents as $value)
{
    $text .= $value; // append contents to $text
}

echo("<pre class='wide'> $text </pre>");

// now replace the original [text] with the stuff we want below

$fcontents = file('../docs/purchase_confirm.txt');  // load the original text

$title = "2022 Conference on Technical Stuff";
$cost = 249.95;
$dateinfo = "Nov 18-25, 2024";
$text = '';

echo("<br><p>Text after replaced text </p>");

$text = '';
foreach ($fcontents as $value)
{
    $value = str_replace("[TITLE]", $title, $value);
    $value = str_replace("[COST]", $cost, $value);
    $value = str_replace("[DATES]", $dateinfo, $value);
    $text .= $value; // append above to $text
}

echo("<pre class='wide'> $text </pre>");

include('includes/footer.php');
?>