PHP strpos() Function: locating a substring within a string
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PHP echo and print statement with 6 examples
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Extract substring from the string in PHP using substr()
PHP substr(): How to Extract a Substring from a String
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How Can PHP Read PDF File Content and Extract Text from PDF using PHP - How Can PHP Extract Image from PDF and Search PDF Content using PHP PDFToText Class - PHP
PHP String Exercise: Extract the file name from the specified string - w3resource
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string_length_to_cut in php - Eduguru
