CJAY questions

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• How to generate 20 characters alphanumeric unique id
• Php how to send mail with bold text
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• How to get the first character of string in php
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• How to update multiple columns in mysql using php
• How to check if key exists in array of object
• How to get the parent div id from the anchor child
• How can I create a tile layout in Bootstrap

CJAY answers