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php syntax error

藏色散人
藏色散人Original
2019-10-11 09:58:153925browse

php syntax error

php常见语法错误

一:缺少结束符引起的错误

1、代码

<?php
for($i=1; $i<11; $i++)
{
echo $i //缺少结束符
}
?>

2、运行结果

Parse error: syntax error, unexpected '}', expecting ',' or ';' in D:\AppServ\www\test\22\1\index.php on line 5

二: 缺少单引号或双引号引起的错误

1、代码

<?php
echo "Hello PHP&#39;;
?>

2、运行结果

Parse error: syntax error, unexpected end of file, expecting variable (T_VARIABLE) or ${ (T_DOLLAR_OPEN_CURLY_BRACES) or {$ (T_CURLY_OPEN) in D:\AppServ\www\test\22\2\index.php on line 3

三: 缺少括号引起的错误

1、代码

<?php
for($i=0; $i<10; $i++)
{
for($j=0; $j<10; $j++)
{
echo $i*$j."<br>";
}
?>

2、运行结果

Parse error: syntax error, unexpected end of file in D:\AppServ\www\test\22\3\index.php on line 9

四: 缺少变量标识符“$”引起的错误

1、代码

<?php
for( $i=1; $i<11; i++){//缺少一个变量的美元符号
echo $i."<br>";
}
?>

2、运行结果

Parse error: syntax error, unexpected &#39;++&#39; (T_INC), expecting &#39;)&#39; in D:\AppServ\www\test\22\4\index.php on line 2

五: 语法错误特点

1、程序还没开始运行。

2、程序报的是Parse error错误。

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