Pure PHP Developer looking - NO PAKİSTAN PERSON

Job ID: 32328164

Budget: $30 – $250 USD

Hello,
Have a script and need 3 points for fix and add

1- Have a some function files and inside some text is builded english but script support multi lang. Som code inside "Alert" , "Button" and some table text is change with same like bellow not work ( .$lang['ANYTEXT']. if i add this than get show blank/no text show , if i add <?php echo trans('ANYTEXT'); ?> than page show 500 error!) one developer found formula start on code line add this = global $db, $settings, $lang; but can not add all line front this... Lets esample bellow, redirecting , Deposit via VISA/MasterCard , Please wait... : change with same like <?php echo trans('ANYTEXT'); ?> or .$lang['ANYTEXT']. than not work !

FOR I SHARED FILES AND HAVE SOME SIMILAR PHP FILES NEED CREATE SOME CODE. I ADD ON PAGES THIS CODES AND THAN I ADD TRASLATE CODE <?php echo trans('ANYTEXT'); ?> or .$lang['ANYTEXT']. OR SIMILAR CODE AND MAKE CONVERT MULTI LANG TEXT!

Example :
line 91
$return .= '<br><center><i class="fa fa-spin fa-spinner"></i><br/>Redirecting...</center><br>';


line 124
<center><button class="stripe-button btn btn-primary" id="payButton">Deposit via VISA/MasterCard</button></center>

line 146
$("#payButton").html("Please wait...");

and have some needed add traslate code same like .$lang['ANYTEXT']. for my traslation... if i add this codes than get script problem you see it exam 500 error or blank fields ie...
I need a solutions for same like upside text lang translate...
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2- I need add sms api to system for SMS VERIFICATION. First register page enter phone number same like image and after at verification page show entered saved register time phone number with
a- Change number button : possible user wrong entere phone number. Than give one times possinle change permision.
b- Send avtivation code (again) : if not receive OTP CODE in 300 second than second time show with again and send again code permision for 2 times. 3nd times button get lock!
c- Verifiy My Phone : Recived OTP PIN code enter to filed and click button time check DB sended code and if true than get virify and lock this phone verify part.

And this verification seen and check at admin part. Want CLICKATEL API
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3- Want add bitcoin payment method API to system inside ADD FUNDS and PAYMENT page.
I first time use bitcoin I want to add the APIs of an online bitcoin server that I can simply subscribe to and manage.