[英]check 10 digit mobile number in string using php
I want to check 10 digit number in following strings using php 我想使用php在以下字符串中检查10位数字
$str1 = "when an unknown 8109100000 remaining essentially unchanged.";
$str2 = "when an unknown remaining essentially unchanged.";
when find 10 digit number then return true 找到10位数字后返回true
You can use preg_match 您可以使用preg_match
Code 码
$str1 = "when an unknown 8109100000 remaining essentially unchanged.";
$str2 = "when an unknown remaining essentially unchanged.";
$pattern = "/\b\d{10}\b/";
$isNum = preg_match($pattern,$str1, $match); //return 1 $str2 return 0.
if($isNum){
//Do something
}
else{
//Aww.... No number in string.
}
echo $match[0]; //return matched number.
Read more about preg_match Regex 阅读有关preg_match正则 表达式的更多信息
In order to only match exact 10 digits you need to combine the {}
with the \\b
in the regex pattern. 为了只匹配精确的10位数字,您需要在正则表达式模式中将
{}
与\\b
组合在一起。
{}
specifies the number of digits and \\b
means match complete words. {}
指定位数, \\b
表示匹配完整的单词。
In this example only the last string should return true/1. 在此示例中,仅最后一个字符串应返回true / 1。
$str = ["when an unknown 810910000011 remaining essentially unchanged.",
"when an unknown remaining essentially unchanged.",
"when an unknown 8109100000 remaining essentially unchanged."];
Foreach($str as $s){
Echo preg_match("/\b\d{10}\b/", $s) . "\n";
}
And it outputs 它输出
0
0
1
As expected 符合预期
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