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The way PHP converts numbers to strings is to use the conversion function strval, such as [$str=strval($float);]. You can also use forced type conversion to achieve this, that is, add the target type enclosed in parentheses before the variable to be converted.
Conversion method:
1. Add the target type enclosed in parentheses before the variable to be converted
2. Use three specific types of conversion functions, intval(), floatval(), strval() [Memory: the destination type val() you want to convert]
3. Use the general type conversion function settype(mixed var, string type)
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The first conversion method: (int) (bool) (float) (string) (array) (object)
<?php $num1=3.14; $num2=(int)$num1; var_dump($num1); //输出float(3.14) var_dump($num2); //输出int(3) ?>
The second conversion method: intval() floatval() strval()
<?php $str="123.9abc"; $int=intval($str); //转换后数值:123 $float=floatval($str); //转换后数值:123.9 $str=strval($float); //转换后字符串:"123.9" ?>
The third conversion method: settype();
<?php $num4=12.8; $flg=settype($num4,"int"); var_dump($flg); //输出bool(true) var_dump($num4); //输出int(12) ?>
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