Removing the last character from a string using substr() is not working [duplicate]

Question

I am trying to get the HTML template from the GMAIL original email view, the problem is that gmail adds an = character to the end of each line.

I used a foreach loop to iterate through the lines and remove the "=" character, but it is still not working at all.

I also have an if statement to validate the existence of the character.

Example GMAIL original view lines:

    body[dir=3Drtl] .directional_text_wrapper { direction: rtl; unicode-bid=
i: embed; }

  </style>
</head>
<body lang=3D"en-us" style=3D"width:100%!important;margin:0;padding:0">
  <div style=3D"padding:10px;line-height:18px;font-family:&#39;Lucida Grand=
e&#39;,Verdana,Arial,sans-serif;font-size:12px;color:#444444">

Code:

<?php

$original_email=file("original.html");
foreach ($original_email as   $line) 
 {
    $sbstr=substr($line,-2,1);
    if( $sbstr == "="){
        echo $substr;
    }

 }


?>

UPDATE

I have tried using the rtrim() function with no luck.

The updated code:

<?php

    $original_email=file("original.html");
    foreach ($original_email as   $line) 
     {
        /*
        $sbstr=substr($line,-2,1);
        if( $sbstr == "="){
            echo $substr;
        }
        */
        rtrim($line,"=");

     }


    ?>

Maybe you need quoted_printable_decode, see stackoverflow.com/questions/9860243/remove-n-from-html — aghidini
– aghidini, Commented Sep 3, 2016 at 18:46

Daniel · Accepted Answer · 2016-09-03 13:50:19Z

1

You can use the PHP function rtrim

rtrim — Strip whitespace (or other characters) from the end of a string

Use the following syntax to remove = at the end of the line

$line = rtrim($line, "=");

answered Sep 3, 2016 at 13:50

Daniel

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1 Comment

nomorehere Over a year ago

Still not doing anything

odai · Accepted Answer · 2016-09-03 13:51:41Z

1

using rtim function

rtrim ( $sbstr,"=")

answered Sep 3, 2016 at 13:51

odai

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3 Comments

nomorehere Over a year ago

Still not doing anything

odai Over a year ago

use str_replace("=","",$line); if you want to remove ALL the '=' char

nomorehere Over a year ago

No , some "=" are needed like in ' style= '

Neil Yoga Crypto · Accepted Answer · 2016-09-03 14:42:37Z

1

Try to trim your string first for whitespace using trim and then rtrim the '=' character.

$line = trim($line);
$line = rtrim($line,'=');

answered Sep 3, 2016 at 14:42

Neil Yoga Crypto

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Comments

nomorehere · Accepted Answer · 2018-11-06 01:16:52Z

0

I have removed the "3D" added in each line, and made a loop that cuts the end of the line and checks if it's equal to "=" or not, if yes, it deleted it using substr.

<?php

$original_email=file("original.html");
foreach ($original_email as   $line) 
 {
$line=str_replace("3D","",$line);
if($sbstr=substr($line,-2,1) == "=")
{
$ln=substr($line,0,strlen($line)-2);
    echo htmlentities($ln)."<br>";
}
}


?>

edited Nov 6, 2018 at 1:16

answered Sep 3, 2016 at 14:31

nomorehere

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2 Comments

miken32 Over a year ago

While this may answer the question, posting code-only answers is discouraged. It's best to explain what the problem was, and what you have done to solve it.

nomorehere Over a year ago

I have edited it just now, to clarify what i've exactly done.

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