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@ 2015-01-30T12:55:34Z

<?php

    function validateSenderName ($check) {

        $sender = array_shift($check);

        echo "Is $sender numeric?\n";
        var_dump(is_numeric($sender));

        if(is_numeric($sender)) {
            $valid = preg_match('/[0-9]{7,15}/', $sender);
        } else {
            $valid = preg_match('/[0-9a-z\-_\.&#\!]{3-11}/i', $sender);
        }

        return $valid;

    }
    
    
    //should all return true:
    var_dump(validateSenderName(['foo' => '0123456789012345'])); // 15 numbers
    var_dump(validateSenderName(['foo' => 'ABCDEFGHIJK'])); // 11 characters
    var_dump(validateSenderName(['foo' => '01234567'])); //7 numbers
    var_dump(validateSenderName(['foo' => 'ABC'])); //3 characters
    echo "--\n";
    //should all return false:    
    var_dump(validateSenderName(['foo' => 'ABCDEFGHIJKL'])); //12 chracters
    var_dump(validateSenderName(['foo' => '012345'])); //5 numbers
    var_dump(validateSenderName(['foo' => 'AB'])); //2 chracters
    var_dump(validateSenderName(['foo' => '01234567890123456'])); //16 numbers

Output for git.master, git.master_jit, rfc.property-hooks: Is 0123456789012345 numeric? bool(true) int(1) Is ABCDEFGHIJK numeric? bool(false) int(0) Is 01234567 numeric? bool(true) int(1) Is ABC numeric? bool(false) int(0) -- Is ABCDEFGHIJKL numeric? bool(false) int(0) Is 012345 numeric? bool(true) int(0) Is AB numeric? bool(false) int(0) Is 01234567890123456 numeric? bool(true) int(1)

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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