删除内联样式php中的样式宽度图像

hello i want show paragraph with image from database. but i want delete inline style width image.

example :

   <?php $prg = "hello this is paragragph and this is image 1 
<img src='https://www.google.co.id/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png' style='width:150px;heigh:150px'> 
this is text and this is image 2 
<img src='http://www.bing.com/az/hprichbg/rb/HumpbackWhaleReunion_ROW11050338497_1366x768.jpg' style='width:150px;heigh:150px' ></p>";

            echo $prg; ?>

i want delete width image in inline style.

this code result i want like this

   <?php $prg = "hello this is paragragph and this is image 1 
<img src='https://www.google.co.id/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png' style='heigh:150px'> 
this is text and this is image 2 
<img src='http://www.bing.com/az/hprichbg/rb/HumpbackWhaleReunion_ROW11050338497_1366x768.jpg' style='heigh:150px' ></p>";

            echo $prg; ?>

here ya go - using regular expressions

<?php
$prg = "hello this is paragragph and this is image 1 
<img src='https://www.google.co.id/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png' style='width:150px;heigh:150px'> 
this is text and this is image 2 
<img src='http://www.bing.com/az/hprichbg/rb/HumpbackWhaleReunion_ROW11050338497_1366x768.jpg' style='width:150px;heigh:150px' ></p>";

echo preg_replace("/width:[0-9]+[a-z]{2};?/i",'',$prg);
?>

showing regex is matching https://regex101.com/r/xE8gX7/1

You can also use str_replace()

$prg = "hello this is paragragph and this is image 1 <img src='https://www.google.co.id/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png' style='width:150px;heigh:150px'> this is text and this is image 2 <img src='http://www.bing.com/az/hprichbg/rb/HumpbackWhaleReunion_ROW11050338497_1366x768.jpg' style='width:150px;heigh:150px' ></p>"; 

$prg = str_replace("style='width:150px;heigh:150px'"," style='height:150px;'",$prg);